# Number 47

## Properties#

- 47 is 10th additive prime because sum of its digits is 11 which is also prime
- 47 is 2nd carol prime
- 47 is 14th chen prime
- 47 is 9th class 1+ prime
- 47 is part of 6th cousin prime {43,
**47**} - 47 is 4th isolated prime
- 47 is 10th left-truncatable prime
- 47 is 6th long prime
- 47 is 6th lucas prime
- 47 is 9th pierpont prime of the 2nd kind
- 47 is 15th prime
- 47 is part of 7th prime triplet {41, 43,
**47**} - 47 is 5th safe prime, its corresponding Sophie Germain prime is 23
- 47 is part of 10th sexy prime {
**47**, 53} - 47 is part of 9th sexy prime {41,
**47**} - 47 is part of 3rd sexy prime quadruplets {41,
**47**, 53, 59} - 47 is part of 7th sexy prime triplet {
**47**, 53, 59} - 47 is part of 6th sexy prime triplet {41,
**47**, 53} - 47 is 13th solinas prime
- 47 is 5th thabit prime
- 47 is 5th ulam prime

## External#

## Neighbours#

35_{1} | 36 | 37_{18} | 38_{1} | 39_{1} |

40 | 41_{18} | 42 | 43_{12} | 44 |

45 | 46_{1} | 47_{21} | 48 | 49_{1} |

50 | 51_{1} | 52 | 53_{18} | 54 |

55_{1} | 56 | 57_{1} | 58_{1} | 59_{12} |

## Compare with#

35_{1} | 36 | 37_{18} | 38_{1} | 39_{1} |

40 | 41_{18} | 42 | 43_{12} | 44 |

45 | 46_{1} | 47_{21} | 48 | 49_{1} |

50 | 51_{1} | 52 | 53_{18} | 54 |

55_{1} | 56 | 57_{1} | 58_{1} | 59_{12} |

## Different Representations#

- 47 in roman numerals is XLVII
- 47 in base 2 is 101111
_{2} - 47 in base 3 is 1202
_{3} - 47 in base 4 is 233
_{4} - 47 in base 5 is 142
_{5} - 47 in base 6 is 115
_{6} - 47 in base 7 is 65
_{7} - 47 in base 8 is 57
_{8} - 47 in base 9 is 52
_{9} - 47 in base 10 is 47
_{10} - 47 in base 11 is 43
_{11} - 47 in base 12 is 3b
_{12} - 47 in base 13 is 38
_{13} - 47 in base 14 is 35
_{14} - 47 in base 15 is 32
_{15} - 47 in base 16 is 2f
_{16}

## Belongs Into#

- 47 belongs into first 50 additive primes.
- 47 belongs into first 10 carol primes.
- 47 belongs into first 50 chen primes.
- 47 belongs into first 10 class 1+ primes.
- 47 belongs into first 10 cousin primes.
- 47 belongs into first 10 isolated primes.
- 47 belongs into first 50 left-truncatable primes.
- 47 belongs into first 10 long primes.
- 47 belongs into first 10 lucas primes.
- 47 belongs into first 10 pierpont prime of the 2nd kinds.
- 47 belongs into first 50 primes.
- 47 belongs into first 10 prime triplets.
- 47 belongs into first 10 safe primes.
- 47 belongs into first 50 sexy primes.
- 47 belongs into first 10 sexy primes.
- 47 belongs into first 10 sexy prime quadrupletss.
- 47 belongs into first 10 sexy prime triplets.
- 47 belongs into first 10 sexy prime triplets.
- 47 belongs into first 50 solinas primes.
- 47 belongs into first 10 thabit primes.
- 47 belongs into first 10 ulam primes.

## You May Also Ask#

- Is 47 additive prime?
- Is 47 bell prime?
- Is 47 carol prime?
- Is 47 centered decagonal prime?
- Is 47 centered heptagonal prime?
- Is 47 centered square prime?
- Is 47 centered triangular prime?
- Is 47 chen prime?
- Is 47 class 1+ prime?
- Is 47 part of cousin prime?
- Is 47 cuban prime 1?
- Is 47 cuban prime 2?
- Is 47 cullen prime?
- Is 47 dihedral prime?
- Is 47 double mersenne prime?
- Is 47 emirps?
- Is 47 euclid prime?
- Is 47 factorial prime?
- Is 47 fermat prime?
- Is 47 fibonacci prime?
- Is 47 genocchi prime?
- Is 47 good prime?
- Is 47 happy prime?
- Is 47 harmonic prime?
- Is 47 isolated prime?
- Is 47 kynea prime?
- Is 47 left-truncatable prime?
- Is 47 leyland prime?
- Is 47 long prime?
- Is 47 lucas prime?
- Is 47 lucky prime?
- Is 47 mersenne prime?
- Is 47 mills prime?
- Is 47 multiplicative prime?
- Is 47 palindromic prime?
- Is 47 pierpont prime?
- Is 47 pierpont prime of the 2nd kind?
- Is 47 prime?
- Is 47 part of prime quadruplet?
- Is 47 part of prime quintuplet 1?
- Is 47 part of prime quintuplet 2?
- Is 47 part of prime sextuplet?
- Is 47 part of prime triplet?
- Is 47 proth prime?
- Is 47 pythagorean prime?
- Is 47 quartan prime?
- Is 47 restricted left-truncatable prime?
- Is 47 restricted right-truncatable prime?
- Is 47 right-truncatable prime?
- Is 47 safe prime?
- Is 47 semiprime?
- Is 47 part of sexy prime?
- Is 47 part of sexy prime quadruplets?
- Is 47 part of sexy prime triplet?
- Is 47 solinas prime?
- Is 47 sophie germain prime?
- Is 47 super prime?
- Is 47 thabit prime?
- Is 47 thabit prime of the 2nd kind?
- Is 47 part of twin prime?
- Is 47 two-sided prime?
- Is 47 ulam prime?
- Is 47 wagstaff prime?
- Is 47 weakly prime?
- Is 47 wedderburn-etherington prime?
- Is 47 wilson prime?
- Is 47 woodall prime?

## Smaller than 47#

- Additive primes up to 47
- Bell primes up to 47
- Carol primes up to 47
- Centered decagonal primes up to 47
- Centered heptagonal primes up to 47
- Centered square primes up to 47
- Centered triangular primes up to 47
- Chen primes up to 47
- Class 1+ primes up to 47
- Cousin primes up to 47
- Cuban primes 1 up to 47
- Cuban primes 2 up to 47
- Cullen primes up to 47
- Dihedral primes up to 47
- Double mersenne primes up to 47
- Emirps up to 47
- Euclid primes up to 47
- Factorial primes up to 47
- Fermat primes up to 47
- Fibonacci primes up to 47
- Genocchi primes up to 47
- Good primes up to 47
- Happy primes up to 47
- Harmonic primes up to 47
- Isolated primes up to 47
- Kynea primes up to 47
- Left-truncatable primes up to 47
- Leyland primes up to 47
- Long primes up to 47
- Lucas primes up to 47
- Lucky primes up to 47
- Mersenne primes up to 47
- Mills primes up to 47
- Multiplicative primes up to 47
- Palindromic primes up to 47
- Pierpont primes up to 47
- Pierpont primes of the 2nd kind up to 47
- Primes up to 47
- Prime quadruplets up to 47
- Prime quintuplet 1s up to 47
- Prime quintuplet 2s up to 47
- Prime sextuplets up to 47
- Prime triplets up to 47
- Proth primes up to 47
- Pythagorean primes up to 47
- Quartan primes up to 47
- Restricted left-truncatable primes up to 47
- Restricted right-truncatable primes up to 47
- Right-truncatable primes up to 47
- Safe primes up to 47
- Semiprimes up to 47
- Sexy primes up to 47
- Sexy prime quadrupletss up to 47
- Sexy prime triplets up to 47
- Solinas primes up to 47
- Sophie germain primes up to 47
- Super primes up to 47
- Thabit primes up to 47
- Thabit primes of the 2nd kind up to 47
- Twin primes up to 47
- Two-sided primes up to 47
- Ulam primes up to 47
- Wagstaff primes up to 47
- Weakly primes up to 47
- Wedderburn-etherington primes up to 47
- Wilson primes up to 47
- Woodall primes up to 47

## First 47#

- First 47 additive primes
- First 47 bell primes
- First 47 carol primes
- First 47 centered decagonal primes
- First 47 centered heptagonal primes
- First 47 centered square primes
- First 47 centered triangular primes
- First 47 chen primes
- First 47 class 1+ primes
- First 47 cousin primes
- First 47 Cuban primes 1
- First 47 Cuban primes 2
- First 47 cullen primes
- First 47 dihedral primes
- First 47 double mersenne primes
- First 47 Emirps
- First 47 euclid primes
- First 47 factorial primes
- First 47 fermat primes
- First 47 fibonacci primes
- First 47 genocchi primes
- First 47 good primes
- First 47 happy primes
- First 47 harmonic primes
- First 47 isolated primes
- First 47 kynea primes
- First 47 left-truncatable primes
- First 47 leyland primes
- First 47 long primes
- First 47 lucas primes
- First 47 lucky primes
- First 47 mersenne primes
- First 47 mills primes
- First 47 multiplicative primes
- First 47 palindromic primes
- First 47 pierpont primes
- First 47 Pierpont primes of the 2nd kind
- First 47 primes
- First 47 prime quadruplets
- First 47 prime quintuplet 1s
- First 47 prime quintuplet 2s
- First 47 prime sextuplets
- First 47 prime triplets
- First 47 proth primes
- First 47 pythagorean primes
- First 47 quartan primes
- First 47 restricted left-truncatable primes
- First 47 restricted right-truncatable primes
- First 47 right-truncatable primes
- First 47 safe primes
- First 47 semiprimes
- First 47 sexy primes
- First 47 sexy prime quadrupletss
- First 47 sexy prime triplets
- First 47 solinas primes
- First 47 sophie germain primes
- First 47 super primes
- First 47 thabit primes
- First 47 Thabit primes of the 2nd kind
- First 47 twin primes
- First 47 two-sided primes
- First 47 ulam primes
- First 47 wagstaff primes
- First 47 weakly primes
- First 47 wedderburn-etherington primes
- First 47 wilson primes
- First 47 woodall primes