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18438076162 = 2114871720933
BaseRepresentation
bin10001001010111111…
…101011011100000010
31202120222111022112201
4101022333223130002
5300230121414122
612245331543414
71221625030042
oct211277533402
952528438481
1018438076162
1179018a4580
1236a6a5ab6a
13197ac13b4c
14c6caa3722
1572da8da27
hex44afeb702

18438076162 has 16 divisors (see below), whose sum is σ = 30233368512. Its totient is φ = 8363729520.

The previous prime is 18438076127. The next prime is 18438076177. The reversal of 18438076162 is 26167083481.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849753 + ... + 871180.

It is an arithmetic number, because the mean of its divisors is an integer number (1889585532).

Almost surely, 218438076162 is an apocalyptic number.

18438076162 is a deficient number, since it is larger than the sum of its proper divisors (11795292350).

18438076162 is a wasteful number, since it uses less digits than its factorization.

18438076162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721433.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 18438076162 in words is "eighteen billion, four hundred thirty-eight million, seventy-six thousand, one hundred sixty-two".

Divisors: 1 2 11 22 487 974 5357 10714 1720933 3441866 18930263 37860526 838094371 1676188742 9219038081 18438076162