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131525052 = 22314717451
BaseRepresentation
bin1111101011011…
…10100110111100
3100011111011110020
413311232212330
5232132300202
621015012140
73154641651
oct765564674
9304434406
10131525052
116827379a
123806a050
1321330999
1413679c28
15b8305bc
hex7d6e9bc

131525052 has 24 divisors (see below), whose sum is σ = 307141632. Its totient is φ = 43806000.

The previous prime is 131525041. The next prime is 131525071. The reversal of 131525052 is 250525131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13927 + ... + 21377.

It is an arithmetic number, because the mean of its divisors is an integer number (12797568).

Almost surely, 2131525052 is an apocalyptic number.

131525052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131525052 is an abundant number, since it is smaller than the sum of its proper divisors (175616580).

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

131525052 is a wasteful number, since it uses less digits than its factorization.

131525052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8929 (or 8927 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 131525052 is about 11468.4372082686. The cubic root of 131525052 is about 508.5529298885.

The spelling of 131525052 in words is "one hundred thirty-one million, five hundred twenty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 12 1471 2942 4413 5884 7451 8826 14902 17652 22353 29804 44706 89412 10960421 21920842 32881263 43841684 65762526 131525052