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18472054 = 238923743
BaseRepresentation
bin100011001110…
…1110001110110
31021202110220011
41012131301312
514212101204
61455530434
7313003246
oct106356166
937673804
1018472054
11a477367
126229a1a
133a99b13
14264bb26
15194d304
hex119dc76

18472054 has 8 divisors (see below), whose sum is σ = 27780480. Its totient is φ = 9211896.

The previous prime is 18472049. The next prime is 18472061. The reversal of 18472054 is 45027481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 11094 + ... + 12649.

It is an arithmetic number, because the mean of its divisors is an integer number (3472560).

Almost surely, 218472054 is an apocalyptic number.

18472054 is a deficient number, since it is larger than the sum of its proper divisors (9308426).

18472054 is a wasteful number, since it uses less digits than its factorization.

18472054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24134.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 18472054 is about 4297.9127492307. The cubic root of 18472054 is about 264.3453831950.

The spelling of 18472054 in words is "eighteen million, four hundred seventy-two thousand, fifty-four".

Divisors: 1 2 389 778 23743 47486 9236027 18472054