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168864153 = 31912723327
BaseRepresentation
bin10100001000010…
…10100110011001
3102202202012001220
422010022212121
5321212123103
624431202253
74120215213
oct1204124631
9382665056
10168864153
1187357157
1248676389
1328ca5323
14185d95b3
15ec58c53
hexa10a999

168864153 has 16 divisors (see below), whose sum is σ = 238878720. Its totient is φ = 105806736.

The previous prime is 168864151. The next prime is 168864167. The reversal of 168864153 is 351468861.

It is not a de Polignac number, because 168864153 - 21 = 168864151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168864151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4425 + ... + 18902.

It is an arithmetic number, because the mean of its divisors is an integer number (14929920).

Almost surely, 2168864153 is an apocalyptic number.

It is an amenable number.

168864153 is a deficient number, since it is larger than the sum of its proper divisors (70014567).

168864153 is a wasteful number, since it uses less digits than its factorization.

168864153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23476.

The product of its digits is 138240, while the sum is 42.

The square root of 168864153 is about 12994.7740649847. The cubic root of 168864153 is about 552.7293021164.

The spelling of 168864153 in words is "one hundred sixty-eight million, eight hundred sixty-four thousand, one hundred fifty-three".

Divisors: 1 3 19 57 127 381 2413 7239 23327 69981 443213 1329639 2962529 8887587 56288051 168864153