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131057602 = 21310214937
BaseRepresentation
bin1111100111111…
…00011111000010
3100010121102020021
413303330133002
5232022320402
621001004054
73150654064
oct763743702
9303542207
10131057602
1167a84575
1237a8362a
13211c8ca0
1413597734
15b78bd37
hex7cfc7c2

131057602 has 16 divisors (see below), whose sum is σ = 211958712. Its totient is φ = 60416640.

The previous prime is 131057543. The next prime is 131057609. The reversal of 131057602 is 206750131.

It can be written as a sum of positive squares in 4 ways, for example, as 91757241 + 39300361 = 9579^2 + 6269^2 .

It is not an unprimeable number, because it can be changed into a prime (131057609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24078 + ... + 29014.

Almost surely, 2131057602 is an apocalyptic number.

131057602 is a deficient number, since it is larger than the sum of its proper divisors (80901110).

131057602 is a wasteful number, since it uses less digits than its factorization.

131057602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 131057602 is about 11448.0392207574. The cubic root of 131057602 is about 507.9497361763.

The spelling of 131057602 in words is "one hundred thirty-one million, fifty-seven thousand, six hundred two".

Divisors: 1 2 13 26 1021 2042 4937 9874 13273 26546 64181 128362 5040677 10081354 65528801 131057602