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252485984 = 2519415273
BaseRepresentation
bin11110000110010…
…10000101100000
3122121002121122202
433003022011200
51004114022414
641015352332
76154044512
oct1703120540
9577077582
10252485984
1111a581503
12706826a8
13404030ba
1425765bb2
15172759de
hexf0ca160

252485984 has 24 divisors (see below), whose sum is σ = 523245240. Its totient is φ = 119598336.

The previous prime is 252485963. The next prime is 252485993. The reversal of 252485984 is 489584252.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 207029 + ... + 208244.

It is an arithmetic number, because the mean of its divisors is an integer number (21801885).

Almost surely, 2252485984 is an apocalyptic number.

It is an amenable number.

252485984 is an abundant number, since it is smaller than the sum of its proper divisors (270759256).

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

252485984 is a wasteful number, since it uses less digits than its factorization.

252485984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415302 (or 415294 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 252485984 is about 15889.8075507540. The cubic root of 252485984 is about 632.0417373494.

The spelling of 252485984 in words is "two hundred fifty-two million, four hundred eighty-five thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 415273 830546 1661092 3322184 6644368 7890187 13288736 15780374 31560748 63121496 126242992 252485984