Number 138821

138821 is prime.

138821 prime factorization is 138821¹

138821 prime factorization is 138821

Divisors (2): 1, 138821

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Properties#

138821 is 5328th additive prime because sum of its digits is 23 which is also prime
138821 is 5563rd chen prime
138821 is 2673rd emirps, its corresponding prime is 128831
138821 is 9713th isolated prime
138821 is 4828th long prime
138821 is 12912th prime
138821 is 6427th pythagorean prime
138821 is 1538th sophie germain prime, its corresponding Safe prime is 277643

External#

Neighbours#

138809₁	138810	138811₁	138812	138813₁
138814	138815₁	138816	138817	138818
138819₁	138820	138821₈	138822	138823₁
138824	138825	138826	138827	138828
138829₆	138830	138831	138832	138833₁

Compare with#

Different Representations#

138821 in base 2 is 100001111001000101₂
138821 in base 3 is 21001102112₃
138821 in base 4 is 201321011₄
138821 in base 5 is 13420241₅
138821 in base 6 is 2550405₆
138821 in base 7 is 1115504₇
138821 in base 8 is 417105₈
138821 in base 9 is 231375₉
138821 in base 10 is 138821₁₀
138821 in base 11 is 95331₁₁
138821 in base 12 is 68405₁₂
138821 in base 13 is 4b257₁₃
138821 in base 14 is 3883b₁₄
138821 in base 15 is 2b1eb₁₅
138821 in base 16 is 21e45₁₆

Belongs Into#

138821 belongs into first 1000 additive primes.
138821 belongs into first 1000 chen primes.
138821 belongs into first 1000 emirpss.
138821 belongs into first 1000 isolated primes.
138821 belongs into first 1000 long primes.
138821 belongs into first 1000 primes.
138821 belongs into first 1000 pythagorean primes.
138821 belongs into first 1000 sophie germain primes.

As Timestamp#

0 + 1 * 138821: Convert timestamp 138821 to date is 1970-01-02 14:33:41
0 + 1000 * 138821: Convert timestamp 138821000 to date is 1974-05-26 17:23:20
1300000000 + 1000 * 138821: Convert timestamp 1438821000 to date is 2015-08-06 00:30:00
1400000000 + 1000 * 138821: Convert timestamp 1538821000 to date is 2018-10-06 10:16:40
1500000000 + 1000 * 138821: Convert timestamp 1638821000 to date is 2021-12-06 20:03:20
1600000000 + 1000 * 138821: Convert timestamp 1738821000 to date is 2025-02-06 05:50:00
1700000000 + 1000 * 138821: Convert timestamp 1838821000 to date is 2028-04-08 15:36:40

You May Also Ask#

Smaller than 138821#

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