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18160136 = 2310322039
BaseRepresentation
bin100010101000…
…1101000001000
31021011122000122
41011101220020
514122111021
61445122412
7310234001
oct105215010
937148018
1018160136
11a283a85
1260b9408
1339bab57
1425aa1a8
1518dabab
hex1151a08

18160136 has 16 divisors (see below), whose sum is σ = 34382400. Its totient is φ = 8991504.

The previous prime is 18160123. The next prime is 18160157. The reversal of 18160136 is 63106181.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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, 10196 + ... + 11843.

It is an arithmetic number, because the mean of its divisors is an integer number (2148900).

Almost surely, 218160136 is an apocalyptic number.

It is an amenable number.

18160136 is a deficient number, since it is larger than the sum of its proper divisors (16222264).

18160136 is a wasteful number, since it uses less digits than its factorization.

18160136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22148 (or 22144 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18160136 is about 4261.4711074933. The cubic root of 18160136 is about 262.8490220509.

The spelling of 18160136 in words is "eighteen million, one hundred sixty thousand, one hundred thirty-six".

Divisors: 1 2 4 8 103 206 412 824 22039 44078 88156 176312 2270017 4540034 9080068 18160136