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252531924 = 223181233499
BaseRepresentation
bin11110000110101…
…01010011010100
3122121011221200020
433003111103110
51004122010144
641020345140
76154325451
oct1703252324
9577157606
10252531924
1111a602a77
12706a51b0
134041ac98
1425778828
1517284419
hexf0d54d4

252531924 has 48 divisors (see below), whose sum is σ = 596232000. Its totient is φ = 83185920.

The previous prime is 252531901. The next prime is 252531931. The reversal of 252531924 is 429135252.

252531924 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 15 ways as a sum of consecutive naturals, for example, 505827 + ... + 506325.

It is an arithmetic number, because the mean of its divisors is an integer number (12421500).

Almost surely, 2252531924 is an apocalyptic number.

It is an amenable number.

252531924 is an abundant number, since it is smaller than the sum of its proper divisors (343700076).

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

252531924 is a wasteful number, since it uses less digits than its factorization.

252531924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 918 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 252531924 is about 15891.2530657592. The cubic root of 252531924 is about 632.0800685022.

The spelling of 252531924 in words is "two hundred fifty-two million, five hundred thirty-one thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 12 181 233 362 466 499 543 699 724 932 998 1086 1398 1497 1996 2172 2796 2994 5988 42173 84346 90319 116267 126519 168692 180638 232534 253038 270957 348801 361276 465068 506076 541914 697602 1083828 1395204 21044327 42088654 63132981 84177308 126265962 252531924