Number 21419

21419 is prime.

21419 prime factorization is 21419¹

21419 prime factorization is 21419

Divisors (2): 1, 21419

Properties#

21419 is 1114th additive prime because sum of its digits is 17 which is also prime
21419 is 1181st chen prime
21419 is 399th happy prime
21419 is 882nd harmonic prime
21419 is 1680th isolated prime
21419 is 912th long prime
21419 is 2405th prime
21419 is 202nd safe prime, its corresponding Sophie Germain prime is 10709
21419 is 349th sophie germain prime, its corresponding Safe prime is 42839

External#

Neighbours#

21407₆	21408	21409₁	21410	21411
21412	21413	21414	21415₁	21416
21417	21418₁	21419₉	21420	21421₁
21422₁	21423	21424	21425	21426
21427₁	21428	21429	21430	21431₁

Compare with#

21407₆	21408	21409₁	21410	21411
21412	21413	21414	21415₁	21416
21417	21418₁	21419₉	21420	21421₁
21422₁	21423	21424	21425	21426
21427₁	21428	21429	21430	21431₁

Different Representations#

21419 in base 2 is 101001110101011₂
21419 in base 3 is 1002101022₃
21419 in base 4 is 11032223₄
21419 in base 5 is 1141134₅
21419 in base 6 is 243055₆
21419 in base 7 is 116306₇
21419 in base 8 is 51653₈
21419 in base 9 is 32338₉
21419 in base 10 is 21419₁₀
21419 in base 11 is 15102₁₁
21419 in base 12 is 1048b₁₂
21419 in base 13 is 9998₁₃
21419 in base 14 is 7b3d₁₄
21419 in base 15 is 652e₁₅
21419 in base 16 is 53ab₁₆

Belongs Into#

21419 belongs into first 1000 additive primes.
21419 belongs into first 1000 chen primes.
21419 belongs into first 500 happy primes.
21419 belongs into first 1000 harmonic primes.
21419 belongs into first 1000 isolated primes.
21419 belongs into first 1000 long primes.
21419 belongs into first 1000 primes.
21419 belongs into first 500 safe primes.
21419 belongs into first 500 sophie germain primes.

As Timestamp#

0 + 1 * 21419: Convert timestamp 21419 to date is 1970-01-01 05:56:59
0 + 1000 * 21419: Convert timestamp 21419000 to date is 1970-09-05 21:43:20
1300000000 + 1000 * 21419: Convert timestamp 1321419000 to date is 2011-11-16 04:50:00
1400000000 + 1000 * 21419: Convert timestamp 1421419000 to date is 2015-01-16 14:36:40
1500000000 + 1000 * 21419: Convert timestamp 1521419000 to date is 2018-03-19 00:23:20
1600000000 + 1000 * 21419: Convert timestamp 1621419000 to date is 2021-05-19 10:10:00
1700000000 + 1000 * 21419: Convert timestamp 1721419000 to date is 2024-07-19 19:56:40

You May Also Ask#

Smaller than 21419#

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