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131126928 = 2439728163
BaseRepresentation
bin1111101000011…
…01011010010000
3100010201221022220
413310031122100
5232032030203
621002301040
73151363152
oct764153220
9303657286
10131126928
1168021669
1237ab7780
13212216ca
14135b4ad2
15b7a2653
hex7d0d690

131126928 has 40 divisors (see below), whose sum is σ = 342248928. Its totient is φ = 43256832.

The previous prime is 131126921. The next prime is 131126953. The reversal of 131126928 is 829621131.

It is not an unprimeable number, because it can be changed into a prime (131126921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9426 + ... + 18737.

Almost surely, 2131126928 is an apocalyptic number.

It is an amenable number.

131126928 is an abundant number, since it is smaller than the sum of its proper divisors (211122000).

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

131126928 is a wasteful number, since it uses less digits than its factorization.

131126928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28271 (or 28265 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 131126928 is about 11451.0666752054. The cubic root of 131126928 is about 508.0392843739.

The spelling of 131126928 in words is "one hundred thirty-one million, one hundred twenty-six thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 97 194 291 388 582 776 1164 1552 2328 4656 28163 56326 84489 112652 168978 225304 337956 450608 675912 1351824 2731811 5463622 8195433 10927244 16390866 21854488 32781732 43708976 65563464 131126928