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131200996 = 2261537709
BaseRepresentation
bin1111101000111…
…11011111100100
3100010212200221011
413310133133210
5232041412441
621004032004
73152122123
oct764373744
9303780834
10131200996
1168072283
1237b32604
1321249334
14135d3aba
15b7b9581
hex7d1f7e4

131200996 has 12 divisors (see below), whose sum is σ = 233366140. Its totient is φ = 64524960.

The previous prime is 131200991. The next prime is 131200997. The reversal of 131200996 is 699002131.

It can be written as a sum of positive squares in 2 ways, for example, as 1240996 + 129960000 = 1114^2 + 11400^2 .

It is not an unprimeable number, because it can be changed into a prime (131200991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268611 + ... + 269098.

Almost surely, 2131200996 is an apocalyptic number.

It is an amenable number.

131200996 is a deficient number, since it is larger than the sum of its proper divisors (102165144).

131200996 is a wasteful number, since it uses less digits than its factorization.

131200996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537774 (or 537772 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 131200996 is about 11454.3003278245. The cubic root of 131200996 is about 508.1349229317.

The spelling of 131200996 in words is "one hundred thirty-one million, two hundred thousand, nine hundred ninety-six".

Divisors: 1 2 4 61 122 244 537709 1075418 2150836 32800249 65600498 131200996