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89231090 = 25131634211
BaseRepresentation
bin1010101000110…
…00111011110010
320012220102001012
411110120323302
5140320343330
612504310522
72132310644
oct524307362
9205812035
1089231090
1146406703
1225a72442
1315642c80
14bbca894
157c78c95
hex5518ef2

89231090 has 32 divisors (see below), whose sum is σ = 174073536. Its totient is φ = 32736960.

The previous prime is 89231083. The next prime is 89231101. The reversal of 89231090 is 9013298.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19085 + ... + 23295.

It is an arithmetic number, because the mean of its divisors is an integer number (5439798).

Almost surely, 289231090 is an apocalyptic number.

89231090 is a deficient number, since it is larger than the sum of its proper divisors (84842446).

89231090 is a wasteful number, since it uses less digits than its factorization.

89231090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 89231090 is about 9446.2209374966. The cubic root of 89231090 is about 446.8606017823.

The spelling of 89231090 in words is "eighty-nine million, two hundred thirty-one thousand, ninety".

Divisors: 1 2 5 10 13 26 65 130 163 326 815 1630 2119 4211 4238 8422 10595 21055 21190 42110 54743 109486 273715 547430 686393 1372786 3431965 6863930 8923109 17846218 44615545 89231090