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18472084 = 2217925799
BaseRepresentation
bin100011001110…
…1110010010100
31021202110221021
41012131302110
514212101314
61455530524
7313003321
oct106356224
937673837
1018472084
11a477394
126229a44
133a99b37
14264bb48
15194d324
hex119dc94

18472084 has 12 divisors (see below), whose sum is σ = 32508000. Its totient is φ = 9184088.

The previous prime is 18472061. The next prime is 18472087. The reversal of 18472084 is 48027481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18472087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12184 + ... + 13615.

It is an arithmetic number, because the mean of its divisors is an integer number (2709000).

Almost surely, 218472084 is an apocalyptic number.

It is an amenable number.

18472084 is a deficient number, since it is larger than the sum of its proper divisors (14035916).

18472084 is a wasteful number, since it uses less digits than its factorization.

18472084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25982 (or 25980 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 18472084 is about 4297.9162392955. The cubic root of 18472084 is about 264.3455263005.

The spelling of 18472084 in words is "eighteen million, four hundred seventy-two thousand, eighty-four".

Divisors: 1 2 4 179 358 716 25799 51598 103196 4618021 9236042 18472084