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88131972 = 2237344331
BaseRepresentation
bin1010100000011…
…00100110000100
320010211120100010
411100030212010
5140030210342
612424550220
72120052345
oct520144604
9203746303
1088131972
1145825945
1225622370
13153498c6
14b9c20cc
157b0d29c
hex540c984

88131972 has 12 divisors (see below), whose sum is σ = 205641296. Its totient is φ = 29377320.

The previous prime is 88131971. The next prime is 88132027. The reversal of 88131972 is 27913188.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 88131972.

It is not an unprimeable number, because it can be changed into a prime (88131971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3672154 + ... + 3672177.

Almost surely, 288131972 is an apocalyptic number.

It is an amenable number.

88131972 is an abundant number, since it is smaller than the sum of its proper divisors (117509324).

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

88131972 is a wasteful number, since it uses less digits than its factorization.

88131972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7344338 (or 7344336 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 88131972 is about 9387.8630156176. The cubic root of 88131972 is about 445.0182578883.

The spelling of 88131972 in words is "eighty-eight million, one hundred thirty-one thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 7344331 14688662 22032993 29377324 44065986 88131972