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109262980 = 22513739877
BaseRepresentation
bin1101000001100…
…11100010000100
321121121010122001
412200303202010
5210432403410
614501515044
72464501651
oct640634204
9247533561
10109262980
1156748992
1230712a84
1319837a68
1410722c28
1598d433a
hex6833884

109262980 has 24 divisors (see below), whose sum is σ = 231132888. Its totient is φ = 43385088.

The previous prime is 109262971. The next prime is 109262987. The reversal of 109262980 is 89262901.

It can be written as a sum of positive squares in 4 ways, for example, as 3090564 + 106172416 = 1758^2 + 10304^2 .

It is not an unprimeable number, because it can be changed into a prime (109262987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17199 + ... + 22678.

It is an arithmetic number, because the mean of its divisors is an integer number (9630537).

Almost surely, 2109262980 is an apocalyptic number.

109262980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109262980 is an abundant number, since it is smaller than the sum of its proper divisors (121869908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109262980 is a wasteful number, since it uses less digits than its factorization.

109262980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40023 (or 40021 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 109262980 is about 10452.8933793472. The cubic root of 109262980 is about 478.0694739796.

The spelling of 109262980 in words is "one hundred nine million, two hundred sixty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 39877 79754 159508 199385 398770 797540 5463149 10926298 21852596 27315745 54631490 109262980