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152256231 = 3229995641
BaseRepresentation
bin10010001001100…
…11111011100111
3101121111102021200
421010303323213
5302434144411
623035213543
73526104501
oct1104637347
9347442250
10152256231
1178a433a6
1242ba72b3
132570bb5a
1416314d71
15d577e56
hex9133ee7

152256231 has 12 divisors (see below), whose sum is σ = 220038000. Its totient is φ = 101452320.

The previous prime is 152256229. The next prime is 152256239. The reversal of 152256231 is 132652251.

It is a happy number.

152256231 is a `hidden beast` number, since 15 + 2 + 25 + 623 + 1 = 666.

It is not a de Polignac number, because 152256231 - 21 = 152256229 is a prime.

It is a super-2 number, since 2×1522562312 = 46363919756650722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 152256195 and 152256204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152256239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24171 + ... + 29811.

It is an arithmetic number, because the mean of its divisors is an integer number (18336500).

Almost surely, 2152256231 is an apocalyptic number.

152256231 is a deficient number, since it is larger than the sum of its proper divisors (67781769).

152256231 is a wasteful number, since it uses less digits than its factorization.

152256231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8646 (or 8643 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 152256231 is about 12339.2151695317. The cubic root of 152256231 is about 533.9800417571.

The spelling of 152256231 in words is "one hundred fifty-two million, two hundred fifty-six thousand, two hundred thirty-one".

Divisors: 1 3 9 2999 5641 8997 16923 26991 50769 16917359 50752077 152256231