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252985924 = 22232749847
BaseRepresentation
bin11110001010001…
…00001001000100
3122122001000110001
433011010021010
51004231022144
641034211044
76161226202
oct1705041104
9578030401
10252985924
1111a893084
1270883a84
1340549819
1425856072
1517323bd4
hexf144244

252985924 has 12 divisors (see below), whose sum is σ = 461974464. Its totient is φ = 120993224.

The previous prime is 252985921. The next prime is 252985933. The reversal of 252985924 is 429589252.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (252985921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374832 + ... + 1375015.

It is an arithmetic number, because the mean of its divisors is an integer number (38497872).

Almost surely, 2252985924 is an apocalyptic number.

It is an amenable number.

252985924 is a deficient number, since it is larger than the sum of its proper divisors (208988540).

252985924 is a wasteful number, since it uses less digits than its factorization.

252985924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749874 (or 2749872 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 252985924 is about 15905.5312391633. The cubic root of 252985924 is about 632.4586246740.

The spelling of 252985924 in words is "two hundred fifty-two million, nine hundred eighty-five thousand, nine hundred twenty-four".

Divisors: 1 2 4 23 46 92 2749847 5499694 10999388 63246481 126492962 252985924