Number 19

19 is prime.

19 prime factorization is 19¹

19 prime factorization is 19

Divisors (2): 1, 19

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Properties#

19 is 1st centered triangular prime for n = 3
19 is 8th chen prime
19 is part of 4th cousin prime {19, 23}
19 is 2nd cuban prime 1
19 is 3rd happy prime
19 is 3rd long prime
19 is 7th pierpont prime
19 is 8th prime
19 is part of 2nd prime quadruplet {11, 13, 17, 19}
19 is part of 1st prime quintuplet 1 {7, 11, 13, 17, 19}
19 is part of 2nd prime quintuplet 2 {11, 13, 17, 19, 23}
19 is part of 1st prime sextuplet {7, 11, 13, 17, 19, 23}
19 is part of 5th prime triplet {17, 19, 23}
19 is part of 4th prime triplet {13, 17, 19}
19 is part of 4th sexy prime {13, 19}
19 is part of 2nd sexy prime triplet {7, 13, 19}
19 is 7th solinas prime
19 is part of 4th twin prime {17, 19}

External#

Neighbours#

7₃₇	8	9₁	10₁	11₃₆
12	13₃₂	14₁	15₁	16
17₃₆	18	19₁₈	20	21₁
22₁	23₃₀	24	25₁	26₁
27	28	29₁₄	30	31₁₈

Compare with#

7₃₇	8	9₁	10₁	11₃₆
12	13₃₂	14₁	15₁	16
17₃₆	18	19₁₈	20	21₁
22₁	23₃₀	24	25₁	26₁
27	28	29₁₄	30	31₁₈

Different Representations#

19 in roman numerals is XIX
19 in base 2 is 10011₂
19 in base 3 is 201₃
19 in base 4 is 103₄
19 in base 5 is 34₅
19 in base 6 is 31₆
19 in base 7 is 25₇
19 in base 8 is 23₈
19 in base 9 is 21₉
19 in base 10 is 19₁₀
19 in base 11 is 18₁₁
19 in base 12 is 17₁₂
19 in base 13 is 16₁₃
19 in base 14 is 15₁₄
19 in base 15 is 14₁₅
19 in base 16 is 13₁₆

Belongs Into#

19 belongs into first 10 centered triangular primes.
19 belongs into first 10 chen primes.
19 belongs into first 10 cousin primes.
19 belongs into first 10 cuban prime 1s.
19 belongs into first 10 happy primes.
19 belongs into first 10 long primes.
19 belongs into first 10 pierpont primes.
19 belongs into first 10 primes.
19 belongs into first 10 prime quadruplets.
19 belongs into first 10 prime quintuplet 1s.
19 belongs into first 10 prime quintuplet 2s.
19 belongs into first 10 prime sextuplets.
19 belongs into first 10 prime triplets.
19 belongs into first 10 prime triplets.
19 belongs into first 10 sexy primes.
19 belongs into first 10 sexy prime triplets.
19 belongs into first 10 solinas primes.
19 belongs into first 10 twin primes.

As Timestamp#

0 + 1 * 19: Convert timestamp 19 to date is 1970-01-01 00:00:19
0 + 1000 * 19: Convert timestamp 19000 to date is 1970-01-01 05:16:40
1300000000 + 1000 * 19: Convert timestamp 1300019000 to date is 2011-03-13 12:23:20
1400000000 + 1000 * 19: Convert timestamp 1400019000 to date is 2014-05-13 22:10:00
1500000000 + 1000 * 19: Convert timestamp 1500019000 to date is 2017-07-14 07:56:40
1600000000 + 1000 * 19: Convert timestamp 1600019000 to date is 2020-09-13 17:43:20
1700000000 + 1000 * 19: Convert timestamp 1700019000 to date is 2023-11-15 03:30:00

You May Also Ask#

Smaller than 19#

First 19#

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