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131536756 = 22132194581
BaseRepresentation
bin1111101011100…
…01011101110100
3100011111202111201
413311301131310
5232133134011
621015142244
73155021041
oct765613564
9304452451
10131536756
116828156a
1238074984
1321336100
14136801c8
15b833cc1
hex7d71774

131536756 has 18 divisors (see below), whose sum is σ = 249259542. Its totient is φ = 60708960.

The previous prime is 131536709. The next prime is 131536759. The reversal of 131536756 is 657635131.

It can be written as a sum of positive squares in 3 ways, for example, as 17388900 + 114147856 = 4170^2 + 10684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131536759) 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 5 ways as a sum of consecutive naturals, for example, 96615 + ... + 97966.

Almost surely, 2131536756 is an apocalyptic number.

It is an amenable number.

131536756 is a deficient number, since it is larger than the sum of its proper divisors (117722786).

131536756 is a wasteful number, since it uses less digits than its factorization.

131536756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194611 (or 194596 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 131536756 is about 11468.9474669649. The cubic root of 131536756 is about 508.5680142820.

The spelling of 131536756 in words is "one hundred thirty-one million, five hundred thirty-six thousand, seven hundred fifty-six".

Divisors: 1 2 4 13 26 52 169 338 676 194581 389162 778324 2529553 5059106 10118212 32884189 65768378 131536756