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131130232 = 2394117419
BaseRepresentation
bin1111101000011…
…10001101111000
3100010202002212021
413310032031320
5232032131412
621002324224
73151405612
oct764161570
9303662767
10131130232
11680240a2
1237ab9674
132122306c
14135b5db2
15b7a3607
hex7d0e378

131130232 has 16 divisors (see below), whose sum is σ = 246144600. Its totient is φ = 65491680.

The previous prime is 131130211. The next prime is 131130239. The reversal of 131130232 is 232031131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131130239) 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, 1182 + ... + 16237.

Almost surely, 2131130232 is an apocalyptic number.

It is an amenable number.

131130232 is a deficient number, since it is larger than the sum of its proper divisors (115014368).

131130232 is a wasteful number, since it uses less digits than its factorization.

131130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366 (or 18362 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131130232 is about 11451.2109403329. The cubic root of 131130232 is about 508.0435513533.

Adding to 131130232 its reverse (232031131), we get a palindrome (363161363).

The spelling of 131130232 in words is "one hundred thirty-one million, one hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 941 1882 3764 7528 17419 34838 69676 139352 16391279 32782558 65565116 131130232