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18360054 = 233437907
BaseRepresentation
bin100011000001…
…0011011110110
31021112210021000
41012002123312
514200010204
61453304130
7312025566
oct106023366
937483230
1018360054
11a4001a9
126195046
133a5ab4b
14261cda6
15192a039
hex11826f6

18360054 has 32 divisors (see below), whose sum is σ = 41754240. Its totient is φ = 5976936.

The previous prime is 18360053. The next prime is 18360071. The reversal of 18360054 is 45006381.

18360054 is a `hidden beast` number, since 1 + 8 + 3 + 600 + 54 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18360053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632 + ... + 6275.

It is an arithmetic number, because the mean of its divisors is an integer number (1304820).

Almost surely, 218360054 is an apocalyptic number.

18360054 is an abundant number, since it is smaller than the sum of its proper divisors (23394186).

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

18360054 is a wasteful number, since it uses less digits than its factorization.

18360054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961 (or 7955 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 18360054 is about 4284.8633583815. The cubic root of 18360054 is about 263.8100389663.

The spelling of 18360054 in words is "eighteen million, three hundred sixty thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 43 54 86 129 258 387 774 1161 2322 7907 15814 23721 47442 71163 142326 213489 340001 426978 680002 1020003 2040006 3060009 6120018 9180027 18360054