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131112634 = 2110959113
BaseRepresentation
bin1111101000010…
…01111010111010
3100010201012201111
413310021322322
5232031101014
621002110534
73151303402
oct764117272
9303635644
10131112634
1168011954
1237aab44a
1321218053
14135ad802
15b79d2c4
hex7d09eba

131112634 has 8 divisors (see below), whose sum is σ = 196849620. Its totient is φ = 65496096.

The previous prime is 131112623. The next prime is 131112637. The reversal of 131112634 is 436211131.

It can be written as a sum of positive squares in 2 ways, for example, as 130988025 + 124609 = 11445^2 + 353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131112637) 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, 27339 + ... + 31774.

Almost surely, 2131112634 is an apocalyptic number.

131112634 is a deficient number, since it is larger than the sum of its proper divisors (65736986).

131112634 is a wasteful number, since it uses less digits than its factorization.

131112634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60224.

The product of its digits is 432, while the sum is 22.

The square root of 131112634 is about 11450.4425241997. The cubic root of 131112634 is about 508.0208234381.

Adding to 131112634 its reverse (436211131), we get a palindrome (567323765).

The spelling of 131112634 in words is "one hundred thirty-one million, one hundred twelve thousand, six hundred thirty-four".

Divisors: 1 2 1109 2218 59113 118226 65556317 131112634