Number 138239

138239 is prime.

138239 prime factorization is 138239¹

138239 prime factorization is 138239

Divisors (2): 1, 138239

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Properties#

138239 is 5543rd chen prime
138239 is 4828th harmonic prime
138239 is 12861st prime
138239 is 871st safe prime, its corresponding Sophie Germain prime is 69119
138239 is part of 1595th twin prime {138239, 138241}

External#

Neighbours#

138227	138228	138229	138230	138231
138232	138233₁	138234	138235₁	138236
138237	138238₁	138239₅	138240	138241₆
138242	138243	138244	138245	138246
138247₅	138248	138249	138250	138251₆

Compare with#

Different Representations#

138239 in base 2 is 100001101111111111₂
138239 in base 3 is 21000121222₃
138239 in base 4 is 201233333₄
138239 in base 5 is 13410424₅
138239 in base 6 is 2543555₆
138239 in base 7 is 1114013₇
138239 in base 8 is 415777₈
138239 in base 9 is 230558₉
138239 in base 10 is 138239₁₀
138239 in base 11 is 94952₁₁
138239 in base 12 is 67bbb₁₂
138239 in base 13 is 4abca₁₃
138239 in base 14 is 38543₁₄
138239 in base 15 is 2ae5e₁₅
138239 in base 16 is 21bff₁₆

Belongs Into#

138239 belongs into first 1000 chen primes.
138239 belongs into first 1000 harmonic primes.
138239 belongs into first 1000 primes.
138239 belongs into first 1000 safe primes.
138239 belongs into first 1000 twin primes.

As Timestamp#

0 + 1 * 138239: Convert timestamp 138239 to date is 1970-01-02 14:23:59
0 + 1000 * 138239: Convert timestamp 138239000 to date is 1974-05-19 23:43:20
1300000000 + 1000 * 138239: Convert timestamp 1438239000 to date is 2015-07-30 06:50:00
1400000000 + 1000 * 138239: Convert timestamp 1538239000 to date is 2018-09-29 16:36:40
1500000000 + 1000 * 138239: Convert timestamp 1638239000 to date is 2021-11-30 02:23:20
1600000000 + 1000 * 138239: Convert timestamp 1738239000 to date is 2025-01-30 12:10:00
1700000000 + 1000 * 138239: Convert timestamp 1838239000 to date is 2028-04-01 21:56:40

You May Also Ask#

Smaller than 138239#

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