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137056915 = 5223122921
BaseRepresentation
bin10000010101101…
…01001010010011
3100112220012202001
420022311022103
5240041310130
621333334431
73252651562
oct1012651223
9315805661
10137056915
1170401986
1239a97417
1322519888
14142b9bd9
15c0746ca
hex82b5293

137056915 has 8 divisors (see below), whose sum is σ = 165207168. Its totient is φ = 109152960.

The previous prime is 137056901. The next prime is 137056939. The reversal of 137056915 is 519650731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137056915 - 25 = 137056883 is a prime.

It is a super-4 number, since 4×1370569154 (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60346 + ... + 62575.

It is an arithmetic number, because the mean of its divisors is an integer number (20650896).

Almost surely, 2137056915 is an apocalyptic number.

137056915 is a deficient number, since it is larger than the sum of its proper divisors (28150253).

137056915 is a wasteful number, since it uses less digits than its factorization.

137056915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123149.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 137056915 is about 11707.1309465641. The cubic root of 137056915 is about 515.5850516464.

It can be divided in two parts, 1370 and 56915, that added together give a palindrome (58285).

The spelling of 137056915 in words is "one hundred thirty-seven million, fifty-six thousand, nine hundred fifteen".

Divisors: 1 5 223 1115 122921 614605 27411383 137056915