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137906313 = 31916314843
BaseRepresentation
bin10000011100001…
…00100010001001
3100121111100220020
420032010202021
5240301000223
621403451053
73263120136
oct1016044211
9317440806
10137906313
1170932066
123a226a89
132275638c
141445b58d
15c1911e3
hex8384889

137906313 has 16 divisors (see below), whose sum is σ = 194753280. Its totient is φ = 86558544.

The previous prime is 137906311. The next prime is 137906317. The reversal of 137906313 is 313609731.

It is not a de Polignac number, because 137906313 - 21 = 137906311 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137906311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870 + ... + 16712.

It is an arithmetic number, because the mean of its divisors is an integer number (12172080).

Almost surely, 2137906313 is an apocalyptic number.

It is an amenable number.

137906313 is a deficient number, since it is larger than the sum of its proper divisors (56846967).

137906313 is a wasteful number, since it uses less digits than its factorization.

137906313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15028.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 137906313 is about 11743.3518639271. The cubic root of 137906313 is about 516.6479563579.

The spelling of 137906313 in words is "one hundred thirty-seven million, nine hundred six thousand, three hundred thirteen".

Divisors: 1 3 19 57 163 489 3097 9291 14843 44529 282017 846051 2419409 7258227 45968771 137906313