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131140036 = 2232785009
BaseRepresentation
bin1111101000100…
…00100111000100
3100010202121022101
413310100213010
5232032440121
621002441444
73151446316
oct764204704
9303677271
10131140036
11680304a5
1237b03284
1321227671
14135b97b6
15b7a6491
hex7d109c4

131140036 has 6 divisors (see below), whose sum is σ = 229495070. Its totient is φ = 65570016.

The previous prime is 131140007. The next prime is 131140049. The reversal of 131140036 is 630041131.

It can be written as a sum of positive squares in only one way, i.e., 108993600 + 22146436 = 10440^2 + 4706^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131139995 and 131140022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16392501 + ... + 16392508.

Almost surely, 2131140036 is an apocalyptic number.

It is an amenable number.

131140036 is a deficient number, since it is larger than the sum of its proper divisors (98355034).

131140036 is a wasteful number, since it uses less digits than its factorization.

131140036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32785013 (or 32785011 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 131140036 is about 11451.6390093296. The cubic root of 131140036 is about 508.0562123921.

Adding to 131140036 its reverse (630041131), we get a palindrome (761181167).

The spelling of 131140036 in words is "one hundred thirty-one million, one hundred forty thousand, thirty-six".

Divisors: 1 2 4 32785009 65570018 131140036