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18354712 = 2313716747
BaseRepresentation
bin100011000000…
…1001000011000
31021112111221011
41012001020120
514144322322
61453223304
7312004165
oct106011030
937474834
1018354712
11a3a7192
126191b34
133a5859c
14261b06c
151928677
hex1181218

18354712 has 16 divisors (see below), whose sum is σ = 34668360. Its totient is φ = 9109824.

The previous prime is 18354689. The next prime is 18354727. The reversal of 18354712 is 21745381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7278 + ... + 9469.

Almost surely, 218354712 is an apocalyptic number.

It is an amenable number.

18354712 is a deficient number, since it is larger than the sum of its proper divisors (16313648).

18354712 is a wasteful number, since it uses less digits than its factorization.

18354712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16890 (or 16886 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 18354712 is about 4284.2399559315. The cubic root of 18354712 is about 263.7844506260.

The spelling of 18354712 in words is "eighteen million, three hundred fifty-four thousand, seven hundred twelve".

Divisors: 1 2 4 8 137 274 548 1096 16747 33494 66988 133976 2294339 4588678 9177356 18354712