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252876290 = 2550949681
BaseRepresentation
bin11110001001010…
…01011000000010
3122121211110001112
433010221120002
51004214020130
641032003322
76160261442
oct1704513002
9577743045
10252876290
1111a818777
1270830542
134050b954
1425828122
1517301495
hexf129602

252876290 has 16 divisors (see below), whose sum is σ = 456080760. Its totient is φ = 100949760.

The previous prime is 252876251. The next prime is 252876311. The reversal of 252876290 is 92678252.

It can be written as a sum of positive squares in 4 ways, for example, as 247149841 + 5726449 = 15721^2 + 2393^2 .

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 7 ways as a sum of consecutive naturals, for example, 19751 + ... + 29930.

Almost surely, 2252876290 is an apocalyptic number.

252876290 is a deficient number, since it is larger than the sum of its proper divisors (203204470).

252876290 is a wasteful number, since it uses less digits than its factorization.

252876290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50197.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 252876290 is about 15902.0844545613. The cubic root of 252876290 is about 632.3672507003.

The spelling of 252876290 in words is "two hundred fifty-two million, eight hundred seventy-six thousand, two hundred ninety".

Divisors: 1 2 5 10 509 1018 2545 5090 49681 99362 248405 496810 25287629 50575258 126438145 252876290