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131308752 = 2432994331
BaseRepresentation
bin1111101001110…
…01110011010000
3100011002011202010
413310321303100
5232103340002
621010222520
73153051231
oct764716320
9304064663
10131308752
1168136233
1237b84a40
13212863b3
1413621088
15b7db46c
hex7d39cd0

131308752 has 40 divisors (see below), whose sum is σ = 350915040. Its totient is φ = 42259840.

The previous prime is 131308711. The next prime is 131308763. The reversal of 131308752 is 257803131.

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, 45774 + ... + 48557.

It is an arithmetic number, because the mean of its divisors is an integer number (8772876).

Almost surely, 2131308752 is an apocalyptic number.

131308752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131308752 is an abundant number, since it is smaller than the sum of its proper divisors (219606288).

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

131308752 is a wasteful number, since it uses less digits than its factorization.

131308752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94371 (or 94365 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 131308752 is about 11459.0030980012. The cubic root of 131308752 is about 508.2739960719.

The spelling of 131308752 in words is "one hundred thirty-one million, three hundred eight thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 29 48 58 87 116 174 232 348 464 696 1392 94331 188662 282993 377324 565986 754648 1131972 1509296 2263944 2735599 4527888 5471198 8206797 10942396 16413594 21884792 32827188 43769584 65654376 131308752