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89003231 = 509174859
BaseRepresentation
bin1010100111000…
…01010011011111
320012110211110222
411103201103133
5140241100411
612455351555
72130341432
oct523412337
9205424428
1089003231
1146270499
12259825bb
1315593345
14bb6b819
157c314db
hex54e14df

89003231 has 4 divisors (see below), whose sum is σ = 89178600. Its totient is φ = 88827864.

The previous prime is 89003219. The next prime is 89003237. The reversal of 89003231 is 13230098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89003231 - 218 = 88741087 is a prime.

It is a super-2 number, since 2×890032312 = 15843150256878722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89003231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89003237) 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, 86921 + ... + 87938.

It is an arithmetic number, because the mean of its divisors is an integer number (22294650).

Almost surely, 289003231 is an apocalyptic number.

89003231 is a deficient number, since it is larger than the sum of its proper divisors (175369).

89003231 is a wasteful number, since it uses less digits than its factorization.

89003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175368.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 89003231 is about 9434.1523731600. The cubic root of 89003231 is about 446.4799123363.

The spelling of 89003231 in words is "eighty-nine million, three thousand, two hundred thirty-one".

Divisors: 1 509 174859 89003231