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137959087 = 719708441
BaseRepresentation
bin10000011100100…
…01011010101111
3100121121001021211
420032101122233
5240304142322
621404535251
73263430040
oct1016213257
9317531254
10137959087
1170968782
123a251527
13227743c6
14144728c7
15c1a1b77
hex83916af

137959087 has 4 divisors (see below), whose sum is σ = 157667536. Its totient is φ = 118250640.

The previous prime is 137959079. The next prime is 137959091. The reversal of 137959087 is 780959731.

137959087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137959087 - 23 = 137959079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137959087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137959687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9854214 + ... + 9854227.

It is an arithmetic number, because the mean of its divisors is an integer number (39416884).

Almost surely, 2137959087 is an apocalyptic number.

137959087 is a deficient number, since it is larger than the sum of its proper divisors (19708449).

137959087 is an equidigital number, since it uses as much as digits as its factorization.

137959087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19708448.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 137959087 is about 11745.5986224628. The cubic root of 137959087 is about 516.7138515815.

The spelling of 137959087 in words is "one hundred thirty-seven million, nine hundred fifty-nine thousand, eighty-seven".

Divisors: 1 7 19708441 137959087