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22740108 = 2231895009
BaseRepresentation
bin101011010111…
…1110010001100
31120210022120020
41112233302030
521310140413
62131222140
7364200456
oct126576214
946708506
1022740108
1111921a86
127747950
1349326b1
14303d2d6
151ee2c23
hex15afc8c

22740108 has 12 divisors (see below), whose sum is σ = 53060280. Its totient is φ = 7580032.

The previous prime is 22740073. The next prime is 22740149. The reversal of 22740108 is 80104722.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×227401082 = 1034225023703328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947493 + ... + 947516.

It is an arithmetic number, because the mean of its divisors is an integer number (4421690).

Almost surely, 222740108 is an apocalyptic number.

It is an amenable number.

22740108 is an abundant number, since it is smaller than the sum of its proper divisors (30320172).

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

22740108 is a wasteful number, since it uses less digits than its factorization.

22740108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895016 (or 1895014 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22740108 is about 4768.6589309784. The cubic root of 22740108 is about 283.3114809752.

The spelling of 22740108 in words is "twenty-two million, seven hundred forty thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 1895009 3790018 5685027 7580036 11370054 22740108