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89238023 = 712748289
BaseRepresentation
bin1010101000110…
…10101000000111
320012220202112222
411110122220013
5140321104043
612504402555
72132340110
oct524325007
9205822488
1089238023
1146410936
1225a7645b
1315646184
14bbcd207
157c7ad68
hex551aa07

89238023 has 4 divisors (see below), whose sum is σ = 101986320. Its totient is φ = 76489728.

The previous prime is 89238011. The next prime is 89238073. The reversal of 89238023 is 32083298.

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

It is not a de Polignac number, because 89238023 - 220 = 88189447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89238073) 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, 6374138 + ... + 6374151.

It is an arithmetic number, because the mean of its divisors is an integer number (25496580).

Almost surely, 289238023 is an apocalyptic number.

89238023 is a deficient number, since it is larger than the sum of its proper divisors (12748297).

89238023 is a wasteful number, since it uses less digits than its factorization.

89238023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12748296.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 89238023 is about 9446.5879025180. The cubic root of 89238023 is about 446.8721747454.

The spelling of 89238023 in words is "eighty-nine million, two hundred thirty-eight thousand, twenty-three".

Divisors: 1 7 12748289 89238023