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136256874 = 23131746883
BaseRepresentation
bin10000001111100…
…01110101101010
3100111101120021220
420013301311222
5234340204444
621304242510
73243110235
oct1007616552
9314346256
10136256874
116aa05896
1239770436
13222c9690
141414c41c
15be67619
hex81f1d6a

136256874 has 16 divisors (see below), whose sum is σ = 293476512. Its totient is φ = 41925168.

The previous prime is 136256863. The next prime is 136256891. The reversal of 136256874 is 478652631.

136256874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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, 873364 + ... + 873519.

It is an arithmetic number, because the mean of its divisors is an integer number (18342282).

Almost surely, 2136256874 is an apocalyptic number.

136256874 is an abundant number, since it is smaller than the sum of its proper divisors (157219638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136256874 is a wasteful number, since it uses less digits than its factorization.

136256874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746901.

The product of its digits is 241920, while the sum is 42.

The square root of 136256874 is about 11672.9119760238. The cubic root of 136256874 is about 514.5798867492.

The spelling of 136256874 in words is "one hundred thirty-six million, two hundred fifty-six thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 13 26 39 78 1746883 3493766 5240649 10481298 22709479 45418958 68128437 136256874