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132931992 = 23312894297
BaseRepresentation
bin1111110110001…
…10000110011000
3100021010122102010
413323012012120
5233012310432
621105105520
73202621554
oct773060630
9307118363
10132931992
1169044856
12386282a0
13217041ab
1413924864
15ba0c3cc
hex7ec6198

132931992 has 32 divisors (see below), whose sum is σ = 332665200. Its totient is φ = 44265984.

The previous prime is 132931991. The next prime is 132932047. The reversal of 132931992 is 299139231.

It is a self number, because there is not a number n which added to its sum of digits gives 132931992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132931991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28788 + ... + 33084.

Almost surely, 2132931992 is an apocalyptic number.

132931992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

132931992 is an abundant number, since it is smaller than the sum of its proper divisors (199733208).

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

132931992 is a wasteful number, since it uses less digits than its factorization.

132931992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595 (or 5591 counting only the distinct ones).

The product of its digits is 26244, while the sum is 39.

The square root of 132931992 is about 11529.6136969111. The cubic root of 132931992 is about 510.3598536801.

The spelling of 132931992 in words is "one hundred thirty-two million, nine hundred thirty-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 1289 2578 3867 4297 5156 7734 8594 10312 12891 15468 17188 25782 30936 34376 51564 103128 5538833 11077666 16616499 22155332 33232998 44310664 66465996 132931992