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18316053 = 3272411013
BaseRepresentation
bin100010111011…
…1101100010101
31021110112220100
41011313230111
514142103203
61452324313
7311453400
oct105675425
937415810
1018316053
11a380138
126173699
133a43b02
14260ad37
15191bea3
hex1177b15

18316053 has 36 divisors (see below), whose sum is σ = 31557708. Its totient is φ = 10200960.

The previous prime is 18316031. The next prime is 18316061. The reversal of 18316053 is 35061381.

It can be written as a sum of positive squares in 2 ways, for example, as 321489 + 17994564 = 567^2 + 4242^2 .

It is not a de Polignac number, because 18316053 - 26 = 18315989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18316003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17575 + ... + 18587.

It is an arithmetic number, because the mean of its divisors is an integer number (876603).

Almost surely, 218316053 is an apocalyptic number.

It is an amenable number.

18316053 is a deficient number, since it is larger than the sum of its proper divisors (13241655).

18316053 is a wasteful number, since it uses less digits than its factorization.

18316053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 18316053 is about 4279.7258089742. The cubic root of 18316053 is about 263.5991247190.

The spelling of 18316053 in words is "eighteen million, three hundred sixteen thousand, fifty-three".

Divisors: 1 3 7 9 21 41 49 63 123 147 287 369 441 861 1013 2009 2583 3039 6027 7091 9117 18081 21273 41533 49637 63819 124599 148911 290731 373797 446733 872193 2035117 2616579 6105351 18316053