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252113186 = 21321076971
BaseRepresentation
bin11110000011011…
…11000100100010
3122120101200021102
433001233010202
51004020110221
641003354402
76150632603
oct1701570442
9576350242
10252113186
1111a347406
1270522a02
1340302500
14256a9daa
151720030b
hexf06f122

252113186 has 24 divisors (see below), whose sum is σ = 413383824. Its totient is φ = 115255920.

The previous prime is 252113167. The next prime is 252113231. The reversal of 252113186 is 681311252.

252113186 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2521131862 = 127122117110141192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32681 + ... + 39651.

It is an arithmetic number, because the mean of its divisors is an integer number (17224326).

Almost surely, 2252113186 is an apocalyptic number.

252113186 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

252113186 is a deficient number, since it is larger than the sum of its proper divisors (161270638).

252113186 is a wasteful number, since it uses less digits than its factorization.

252113186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106 (or 7093 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 252113186 is about 15878.0724900726. The cubic root of 252113186 is about 631.7305122085.

The spelling of 252113186 in words is "two hundred fifty-two million, one hundred thirteen thousand, one hundred eighty-six".

Divisors: 1 2 13 26 107 169 214 338 1391 2782 6971 13942 18083 36166 90623 181246 745897 1178099 1491794 2356198 9696661 19393322 126056593 252113186