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131116488 = 23353103079
BaseRepresentation
bin1111101000010…
…10110111001000
3100010201102000020
413310022313020
5232031211423
621002140440
73151320546
oct764126710
9303642006
10131116488
1168014838
1237ab1720
1321219a29
14135b0d96
15b79e4e3
hex7d0adc8

131116488 has 32 divisors (see below), whose sum is σ = 333979200. Its totient is φ = 42880448.

The previous prime is 131116477. The next prime is 131116501. The reversal of 131116488 is 884611131.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

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, 50268 + ... + 52811.

It is an arithmetic number, because the mean of its divisors is an integer number (10436850).

Almost surely, 2131116488 is an apocalyptic number.

It is an amenable number.

131116488 is an abundant number, since it is smaller than the sum of its proper divisors (202862712).

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

131116488 is a wasteful number, since it uses less digits than its factorization.

131116488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103141 (or 103137 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 131116488 is about 11450.6108134021. The cubic root of 131116488 is about 508.0258010745.

The spelling of 131116488 in words is "one hundred thirty-one million, one hundred sixteen thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 1272 103079 206158 309237 412316 618474 824632 1236948 2473896 5463187 10926374 16389561 21852748 32779122 43705496 65558244 131116488