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88285131 = 32111752457
BaseRepresentation
bin1010100001100…
…01111111001011
320011010100102200
411100301333023
5140100111011
612432131243
72121261024
oct520617713
9204110380
1088285131
114591aa20
1225696b23
13153a152c
14ba21c4b
157b3d856
hex5431fcb

88285131 has 24 divisors (see below), whose sum is σ = 147302064. Its totient is φ = 50357760.

The previous prime is 88285123. The next prime is 88285133. The reversal of 88285131 is 13158288.

It is not a de Polignac number, because 88285131 - 23 = 88285123 is a prime.

It is a super-2 number, since 2×882851312 = 15588528711374322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (88285133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24546 + ... + 27911.

It is an arithmetic number, because the mean of its divisors is an integer number (6137586).

Almost surely, 288285131 is an apocalyptic number.

88285131 is a deficient number, since it is larger than the sum of its proper divisors (59016933).

88285131 is a wasteful number, since it uses less digits than its factorization.

88285131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52491 (or 52488 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 88285131 is about 9396.0167624372. The cubic root of 88285131 is about 445.2758984284.

The spelling of 88285131 in words is "eighty-eight million, two hundred eighty-five thousand, one hundred thirty-one".

Divisors: 1 3 9 11 17 33 51 99 153 187 561 1683 52457 157371 472113 577027 891769 1731081 2675307 5193243 8025921 9809459 29428377 88285131