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131338884 = 22377314159
BaseRepresentation
bin1111101010000…
…01001010000100
3100011010201002010
413311001022010
5232110321014
621011014220
73153235125
oct765011204
9304121063
10131338884
1168156936
1237b9a370
1321297021
141362c04c
15b7e5359
hex7d41284

131338884 has 24 divisors (see below), whose sum is σ = 306875520. Its totient is φ = 43719904.

The previous prime is 131338861. The next prime is 131338903. The reversal of 131338884 is 488833131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197 + ... + 16355.

It is an arithmetic number, because the mean of its divisors is an integer number (12786480).

Almost surely, 2131338884 is an apocalyptic number.

It is an amenable number.

131338884 is an abundant number, since it is smaller than the sum of its proper divisors (175536636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131338884 is a wasteful number, since it uses less digits than its factorization.

131338884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14939 (or 14937 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 131338884 is about 11460.3177966407. The cubic root of 131338884 is about 508.3128717256.

The spelling of 131338884 in words is "one hundred thirty-one million, three hundred thirty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 773 1546 2319 3092 4638 9276 14159 28318 42477 56636 84954 169908 10944907 21889814 32834721 43779628 65669442 131338884