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131082582 = 2389245473
BaseRepresentation
bin1111101000000…
…10100101010110
3100010122200111110
413310002211112
5232024120312
621001315450
73151116651
oct764024526
9303580443
10131082582
1167aa1314
1237a95b86
1321207477
14135a2898
15b79443c
hex7d02956

131082582 has 16 divisors (see below), whose sum is σ = 265111920. Its totient is φ = 43203072.

The previous prime is 131082571. The next prime is 131082583. The reversal of 131082582 is 285280131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131082583) 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, 122203 + ... + 123270.

It is an arithmetic number, because the mean of its divisors is an integer number (16569495).

Almost surely, 2131082582 is an apocalyptic number.

131082582 is an abundant number, since it is smaller than the sum of its proper divisors (134029338).

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

131082582 is a wasteful number, since it uses less digits than its factorization.

131082582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245567.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 131082582 is about 11449.1301853023. The cubic root of 131082582 is about 507.9820064100.

The spelling of 131082582 in words is "one hundred thirty-one million, eighty-two thousand, five hundred eighty-two".

Divisors: 1 2 3 6 89 178 267 534 245473 490946 736419 1472838 21847097 43694194 65541291 131082582