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18418361054 = 237435788297
BaseRepresentation
bin10001001001110100…
…011110001011011110
31202112121101200111112
4101021310132023132
5300210100023204
612243345222022
71221265325432
oct211164361336
952477350445
1018418361054
1178a17592a5
1236a0331912
131976b002c2
14c6a2109c2
1572be9726e
hex449d1e2de

18418361054 has 16 divisors (see below), whose sum is σ = 29034102768. Its totient is φ = 8751903552.

The previous prime is 18418361023. The next prime is 18418361057. The reversal of 18418361054 is 45016381481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18418361057) 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, 2890967 + ... + 2897330.

It is an arithmetic number, because the mean of its divisors is an integer number (1814631423).

Almost surely, 218418361054 is an apocalyptic number.

18418361054 is a deficient number, since it is larger than the sum of its proper divisors (10615741714).

18418361054 is a wasteful number, since it uses less digits than its factorization.

18418361054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5788379.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 18418361054 in words is "eighteen billion, four hundred eighteen million, three hundred sixty-one thousand, fifty-four".

Divisors: 1 2 37 43 74 86 1591 3182 5788297 11576594 214166989 248896771 428333978 497793542 9209180527 18418361054