Number 28001

28001 is prime.

28001 prime factorization is 28001¹

28001 prime factorization is 28001

Divisors (2): 1, 28001

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Properties#

28001 is 1401st additive prime because sum of its digits is 11 which is also prime
28001 is 1486th chen prime
28001 is part of 447th cousin prime {27997, 28001}
28001 is 2165th isolated prime
28001 is 3056th prime
28001 is 1523rd pythagorean prime
28001 is 424th sophie germain prime, its corresponding Safe prime is 56003

External#

Neighbours#

27989₁	27990	27991₁	27992	27993
27994₁	27995	27996	27997₅	27998₁
27999	28000	28001₇	28002	28003₁
28004	28005	28006	28007₁	28008
28009₁	28010	28011₁	28012	28013₁

Compare with#

27989₁	27990	27991₁	27992	27993
27994₁	27995	27996	27997₅	27998₁
27999	28000	28001₇	28002	28003₁
28004	28005	28006	28007₁	28008
28009₁	28010	28011₁	28012	28013₁

Different Representations#

28001 in base 2 is 110110101100001₂
28001 in base 3 is 1102102002₃
28001 in base 4 is 12311201₄
28001 in base 5 is 1344001₅
28001 in base 6 is 333345₆
28001 in base 7 is 144431₇
28001 in base 8 is 66541₈
28001 in base 9 is 42362₉
28001 in base 10 is 28001₁₀
28001 in base 11 is 1a046₁₁
28001 in base 12 is 14255₁₂
28001 in base 13 is c98c₁₃
28001 in base 14 is a2c1₁₄
28001 in base 15 is 846b₁₅
28001 in base 16 is 6d61₁₆

Belongs Into#

28001 belongs into first 1000 additive primes.
28001 belongs into first 1000 chen primes.
28001 belongs into first 500 cousin primes.
28001 belongs into first 1000 isolated primes.
28001 belongs into first 1000 primes.
28001 belongs into first 1000 pythagorean primes.
28001 belongs into first 500 sophie germain primes.

As Timestamp#

0 + 1 * 28001: Convert timestamp 28001 to date is 1970-01-01 07:46:41
0 + 1000 * 28001: Convert timestamp 28001000 to date is 1970-11-21 02:03:20
1300000000 + 1000 * 28001: Convert timestamp 1328001000 to date is 2012-01-31 09:10:00
1400000000 + 1000 * 28001: Convert timestamp 1428001000 to date is 2015-04-02 18:56:40
1500000000 + 1000 * 28001: Convert timestamp 1528001000 to date is 2018-06-03 04:43:20
1600000000 + 1000 * 28001: Convert timestamp 1628001000 to date is 2021-08-03 14:30:00
1700000000 + 1000 * 28001: Convert timestamp 1728001000 to date is 2024-10-04 00:16:40

You May Also Ask#

Smaller than 28001#

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