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137879995 = 5112506909
BaseRepresentation
bin10000011011111…
…10000110111011
3100121110000210111
420031332012323
5240244124440
621403125151
73262650331
oct1015760673
9317400714
10137879995
1170914310
123a2137b7
13227473c6
1414451b51
15c1884ea
hex837e1bb

137879995 has 8 divisors (see below), whose sum is σ = 180497520. Its totient is φ = 100276320.

The previous prime is 137879983. The next prime is 137880031. The reversal of 137879995 is 599978731.

It is a happy number.

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

It is not a de Polignac number, because 137879995 - 27 = 137879867 is a prime.

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, 1253400 + ... + 1253509.

It is an arithmetic number, because the mean of its divisors is an integer number (22562190).

Almost surely, 2137879995 is an apocalyptic number.

137879995 is a deficient number, since it is larger than the sum of its proper divisors (42617525).

137879995 is a wasteful number, since it uses less digits than its factorization.

137879995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506925.

The product of its digits is 4286520, while the sum is 58.

The square root of 137879995 is about 11742.2312615618. The cubic root of 137879995 is about 516.6150886193.

The spelling of 137879995 in words is "one hundred thirty-seven million, eight hundred seventy-nine thousand, nine hundred ninety-five".

Divisors: 1 5 11 55 2506909 12534545 27575999 137879995