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88971387 = 3173794603
BaseRepresentation
bin1010100110110…
…01100001111011
320012102012210120
411103121201323
5140234041022
612454544323
72130146541
oct523314173
9205365716
1088971387
114624957a
12259680a3
13155819bb
14bb5dd91
157c26d5c
hex54d987b

88971387 has 16 divisors (see below), whose sum is σ = 125965440. Its totient is φ = 55665792.

The previous prime is 88971373. The next prime is 88971397. The reversal of 88971387 is 78317988.

It is not a de Polignac number, because 88971387 - 24 = 88971371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (88971397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17028 + ... + 21630.

It is an arithmetic number, because the mean of its divisors is an integer number (7872840).

Almost surely, 288971387 is an apocalyptic number.

88971387 is a deficient number, since it is larger than the sum of its proper divisors (36994053).

88971387 is a wasteful number, since it uses less digits than its factorization.

88971387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its digits is 677376, while the sum is 51.

The square root of 88971387 is about 9432.4645241845. The cubic root of 88971387 is about 446.4266580812.

The spelling of 88971387 in words is "eighty-eight million, nine hundred seventy-one thousand, three hundred eighty-seven".

Divisors: 1 3 17 51 379 1137 4603 6443 13809 19329 78251 234753 1744537 5233611 29657129 88971387