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131432982 = 2321905497
BaseRepresentation
bin1111101010110…
…00001000010110
3100011022111011020
413311120020112
5232121323412
621013022010
73154106352
oct765301026
9304274136
10131432982
11682105aa
1238024906
13212caac5
1413654462
15b81318c
hex7d58216

131432982 has 8 divisors (see below), whose sum is σ = 262865976. Its totient is φ = 43810992.

The previous prime is 131432981. The next prime is 131433007. The reversal of 131432982 is 289234131.

It is a sphenic number, since it is the product of 3 distinct primes.

131432982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131432981) 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 3 ways as a sum of consecutive naturals, for example, 10952743 + ... + 10952754.

It is an arithmetic number, because the mean of its divisors is an integer number (32858247).

Almost surely, 2131432982 is an apocalyptic number.

131432982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131432982 is a wasteful number, since it uses less digits than its factorization.

131432982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21905502.

The product of its digits is 10368, while the sum is 33.

The square root of 131432982 is about 11464.4224451125. The cubic root of 131432982 is about 508.4342366628.

The spelling of 131432982 in words is "one hundred thirty-one million, four hundred thirty-two thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 21905497 43810994 65716491 131432982