Number 21013

21013 is prime.

21013 prime factorization is 21013¹

21013 prime factorization is 21013

Divisors (2): 1, 21013

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Properties#

21013 is 1095th additive prime because sum of its digits is 7 which is also prime
21013 is 37th centered square prime for n = 102
21013 is part of 358th cousin prime {21013, 21017}
21013 is 868th harmonic prime
21013 is 384th lucky prime
21013 is 2363rd prime
21013 is part of 20th prime quadruplet {21011, 21013, 21017, 21019}
21013 is part of 7th prime quintuplet 2 {21011, 21013, 21017, 21019, 21023}
21013 is part of 176th prime triplet {21013, 21017, 21019}
21013 is part of 175th prime triplet {21011, 21013, 21017}
21013 is 1174th pythagorean prime
21013 is part of 715th sexy prime {21013, 21019}
21013 is part of 358th twin prime {21011, 21013}

External#

Neighbours#

21001₅	21002₁	21003₁	21004	21005₁
21006	21007₁	21008	21009	21010
21011₁₂	21012	21013₁₃	21014	21015
21016	21017₁₆	21018	21019₁₀	21020
21021	21022	21023₉	21024	21025

Compare with#

21001₅	21002₁	21003₁	21004	21005₁
21006	21007₁	21008	21009	21010
21011₁₂	21012	21013₁₃	21014	21015
21016	21017₁₆	21018	21019₁₀	21020
21021	21022	21023₉	21024	21025

Different Representations#

21013 in base 2 is 101001000010101₂
21013 in base 3 is 1001211021₃
21013 in base 4 is 11020111₄
21013 in base 5 is 1133023₅
21013 in base 6 is 241141₆
21013 in base 7 is 115156₇
21013 in base 8 is 51025₈
21013 in base 9 is 31737₉
21013 in base 10 is 21013₁₀
21013 in base 11 is 14873₁₁
21013 in base 12 is 101b1₁₂
21013 in base 13 is 9745₁₃
21013 in base 14 is 792d₁₄
21013 in base 15 is 635d₁₅
21013 in base 16 is 5215₁₆

Belongs Into#

21013 belongs into first 1000 additive primes.
21013 belongs into first 50 centered square primes.
21013 belongs into first 500 cousin primes.
21013 belongs into first 1000 harmonic primes.
21013 belongs into first 500 lucky primes.
21013 belongs into first 1000 primes.
21013 belongs into first 50 prime quadruplets.
21013 belongs into first 10 prime quintuplet 2s.
21013 belongs into first 500 prime triplets.
21013 belongs into first 500 prime triplets.
21013 belongs into first 1000 pythagorean primes.
21013 belongs into first 1000 sexy primes.
21013 belongs into first 500 twin primes.

As Timestamp#

0 + 1 * 21013: Convert timestamp 21013 to date is 1970-01-01 05:50:13
0 + 1000 * 21013: Convert timestamp 21013000 to date is 1970-09-01 04:56:40
1300000000 + 1000 * 21013: Convert timestamp 1321013000 to date is 2011-11-11 12:03:20
1400000000 + 1000 * 21013: Convert timestamp 1421013000 to date is 2015-01-11 21:50:00
1500000000 + 1000 * 21013: Convert timestamp 1521013000 to date is 2018-03-14 07:36:40
1600000000 + 1000 * 21013: Convert timestamp 1621013000 to date is 2021-05-14 17:23:20
1700000000 + 1000 * 21013: Convert timestamp 1721013000 to date is 2024-07-15 03:10:00

You May Also Ask#

Smaller than 21013#

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