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156398968 = 23113157331
BaseRepresentation
bin10010101001001…
…11010101111000
3101220021220001101
421110213111320
5310014231333
623304101144
73606240445
oct1124472570
9356256041
10156398968
1180312950
12444647b4
132652c68b
1416ab29cc
15dae567d
hex9527578

156398968 has 32 divisors (see below), whose sum is σ = 330232320. Its totient is φ = 68796000.

The previous prime is 156398959. The next prime is 156398987. The reversal of 156398968 is 869893651.

It is a happy number.

156398968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 25938 + ... + 31393.

It is an arithmetic number, because the mean of its divisors is an integer number (10319760).

Almost surely, 2156398968 is an apocalyptic number.

It is an amenable number.

156398968 is an abundant number, since it is smaller than the sum of its proper divisors (173833352).

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

156398968 is a wasteful number, since it uses less digits than its factorization.

156398968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57379 (or 57375 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 55.

The square root of 156398968 is about 12505.9573004229. The cubic root of 156398968 is about 538.7797871139.

The spelling of 156398968 in words is "one hundred fifty-six million, three hundred ninety-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 682 1364 2728 57331 114662 229324 458648 630641 1261282 1777261 2522564 3554522 5045128 7109044 14218088 19549871 39099742 78199484 156398968