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231194252 = 2223101139179
BaseRepresentation
bin11011100011110…
…11111010001100
3121010000212220002
431301323322030
5433141204002
634535143432
75505055502
oct1561737214
9533025802
10231194252
11109559733
1265514b78
1338b89a43
14229c2672
151546c002
hexdc7be8c

231194252 has 48 divisors (see below), whose sum is σ = 431827200. Its totient is φ = 108081600.

The previous prime is 231194239. The next prime is 231194267. The reversal of 231194252 is 252491132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291499 + ... + 1291677.

It is an arithmetic number, because the mean of its divisors is an integer number (8996400).

Almost surely, 2231194252 is an apocalyptic number.

It is an amenable number.

231194252 is a deficient number, since it is larger than the sum of its proper divisors (200632948).

231194252 is a wasteful number, since it uses less digits than its factorization.

231194252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 231194252 is about 15205.0732323130. The cubic root of 231194252 is about 613.7511856711.

The spelling of 231194252 in words is "two hundred thirty-one million, one hundred ninety-four thousand, two hundred fifty-two".

Divisors: 1 2 4 23 46 92 101 139 179 202 278 358 404 556 716 2323 3197 4117 4646 6394 8234 9292 12788 14039 16468 18079 24881 28078 36158 49762 56156 72316 99524 322897 415817 572263 645794 831634 1144526 1291588 1663268 2289052 2512981 5025962 10051924 57798563 115597126 231194252