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252120976 = 2473215857
BaseRepresentation
bin11110000011100…
…00111110010000
3122120102001221221
433001300332100
51004020332401
641003454424
76150664402
oct1701607620
9576361857
10252120976
1111a352248
1270527414
1340305c13
14256acb72
15172027a1
hexf070f90

252120976 has 20 divisors (see below), whose sum is σ = 495178252. Its totient is φ = 124333056.

The previous prime is 252120961. The next prime is 252120977. The reversal of 252120976 is 679021252.

It can be written as a sum of positive squares in 2 ways, for example, as 182898576 + 69222400 = 13524^2 + 8320^2 .

It is not an unprimeable number, because it can be changed into a prime (252120977) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 106761 + ... + 109096.

Almost surely, 2252120976 is an apocalyptic number.

It is an amenable number.

252120976 is a deficient number, since it is larger than the sum of its proper divisors (243057276).

252120976 is a wasteful number, since it uses less digits than its factorization.

252120976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215938 (or 215932 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 252120976 is about 15878.3177950311. The cubic root of 252120976 is about 631.7370187173.

The spelling of 252120976 in words is "two hundred fifty-two million, one hundred twenty thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 73 146 292 584 1168 215857 431714 863428 1726856 3453712 15757561 31515122 63030244 126060488 252120976