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137904875 = 531577027
BaseRepresentation
bin10000011100001…
…00001011101011
3100121111021220222
420032010023223
5240300424000
621403440255
73263113013
oct1016041353
9317437828
10137904875
1170930a79
123a22608b
1322755824
141445ac43
15c190a85
hex83842eb

137904875 has 16 divisors (see below), whose sum is σ = 173226144. Its totient is φ = 109605600.

The previous prime is 137904857. The next prime is 137904881. The reversal of 137904875 is 578409731.

It is not a de Polignac number, because 137904875 - 210 = 137903851 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16112 + ... + 23138.

It is an arithmetic number, because the mean of its divisors is an integer number (10826634).

Almost surely, 2137904875 is an apocalyptic number.

137904875 is a deficient number, since it is larger than the sum of its proper divisors (35321269).

137904875 is an equidigital number, since it uses as much as digits as its factorization.

137904875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7199 (or 7189 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 137904875 is about 11743.2906376365. The cubic root of 137904875 is about 516.6461605921.

The spelling of 137904875 in words is "one hundred thirty-seven million, nine hundred four thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 157 785 3925 7027 19625 35135 175675 878375 1103239 5516195 27580975 137904875