Number 13

13 is prime.

13 prime factorization is 13¹

13 prime factorization is 13

Divisors (2): 1, 13

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Properties#

13 is 2nd centered square prime for n = 2
13 is 6th chen prime
13 is part of 3rd cousin prime {13, 17}
13 is 1st cuban prime 2
13 is 1st emirps, its corresponding prime is 31
13 is 4th fibonacci prime
13 is 2nd happy prime
13 is 2nd harmonic prime
13 is 5th left-truncatable prime
13 is 3rd lucky prime
13 is 5th multiplicative prime because product of its digits is 3 which is also prime
13 is 5th pierpont prime
13 is 6th prime
13 is part of 2nd prime quadruplet {11, 13, 17, 19}
13 is part of 1st prime quadruplet {5, 7, 11, 13}
13 is part of 1st prime quintuplet 1 {7, 11, 13, 17, 19}
13 is part of 2nd prime quintuplet 2 {11, 13, 17, 19, 23}
13 is part of 1st prime quintuplet 2 {5, 7, 11, 13, 17}
13 is part of 1st prime sextuplet {7, 11, 13, 17, 19, 23}
13 is part of 4th prime triplet {13, 17, 19}
13 is part of 3rd prime triplet {11, 13, 17}
13 is part of 2nd prime triplet {7, 11, 13}
13 is 3rd proth prime
13 is 2nd pythagorean prime
13 is part of 4th sexy prime {13, 19}
13 is part of 2nd sexy prime {7, 13}
13 is part of 2nd sexy prime triplet {7, 13, 19}
13 is 5th solinas prime
13 is 2nd thabit prime of the 2nd kind
13 is part of 3rd twin prime {11, 13}
13 is 4th ulam prime
13 is 2nd wilson prime

External#

Neighbours#

1	2₂₆	3₂₉	4₁	5₃₆
6₁	7₃₇	8	9₁	10₁
11₃₆	12	13₃₂	14₁	15₁
16	17₃₆	18	19₁₈	20
21₁	22₁	23₃₀	24	25₁

Compare with#

1	2₂₆	3₂₉	4₁	5₃₆
6₁	7₃₇	8	9₁	10₁
11₃₆	12	13₃₂	14₁	15₁
16	17₃₆	18	19₁₈	20
21₁	22₁	23₃₀	24	25₁

Different Representations#

13 in roman numerals is XIII
13 in base 2 is 1101₂
13 in base 3 is 111₃
13 in base 4 is 31₄
13 in base 5 is 23₅
13 in base 6 is 21₆
13 in base 7 is 16₇
13 in base 8 is 15₈
13 in base 9 is 14₉
13 in base 10 is 13₁₀
13 in base 11 is 12₁₁
13 in base 12 is 11₁₂
13 in base 13 is 10₁₃
13 in base 14 is d₁₄
13 in base 15 is d₁₅
13 in base 16 is d₁₆

Belongs Into#

13 belongs into first 10 centered square primes.
13 belongs into first 10 chen primes.
13 belongs into first 10 cousin primes.
13 belongs into first 10 cuban prime 2s.
13 belongs into first 10 emirpss.
13 belongs into first 10 fibonacci primes.
13 belongs into first 10 happy primes.
13 belongs into first 10 harmonic primes.
13 belongs into first 10 left-truncatable primes.
13 belongs into first 10 lucky primes.
13 belongs into first 10 multiplicative primes.
13 belongs into first 10 pierpont primes.
13 belongs into first 10 primes.
13 belongs into first 10 prime quadruplets.
13 belongs into first 10 prime quadruplets.
13 belongs into first 10 prime quintuplet 1s.
13 belongs into first 10 prime quintuplet 2s.
13 belongs into first 10 prime quintuplet 2s.
13 belongs into first 10 prime sextuplets.
13 belongs into first 10 prime triplets.
13 belongs into first 10 prime triplets.
13 belongs into first 10 prime triplets.
13 belongs into first 10 proth primes.
13 belongs into first 10 pythagorean primes.
13 belongs into first 10 sexy primes.
13 belongs into first 10 sexy primes.
13 belongs into first 10 sexy prime triplets.
13 belongs into first 10 solinas primes.
13 belongs into first 10 thabit prime of the 2nd kinds.
13 belongs into first 10 twin primes.
13 belongs into first 10 ulam primes.
13 belongs into first 10 wilson primes.

As Timestamp#

0 + 1 * 13: Convert timestamp 13 to date is 1970-01-01 00:00:13
0 + 1000 * 13: Convert timestamp 13000 to date is 1970-01-01 03:36:40
1300000000 + 1000 * 13: Convert timestamp 1300013000 to date is 2011-03-13 10:43:20
1400000000 + 1000 * 13: Convert timestamp 1400013000 to date is 2014-05-13 20:30:00
1500000000 + 1000 * 13: Convert timestamp 1500013000 to date is 2017-07-14 06:16:40
1600000000 + 1000 * 13: Convert timestamp 1600013000 to date is 2020-09-13 16:03:20
1700000000 + 1000 * 13: Convert timestamp 1700013000 to date is 2023-11-15 01:50:00

You May Also Ask#

Smaller than 13#

First 13#

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