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18079712 = 25780713
BaseRepresentation
bin100010011110…
…1111111100000
31021000112200222
41010331333200
514112022322
61443302212
7306450350
oct104757740
937015628
1018079712
11a229612
12607a968
133990371
142588b60
1518c1e42
hex113dfe0

18079712 has 24 divisors (see below), whose sum is σ = 40679856. Its totient is φ = 7748352.

The previous prime is 18079709. The next prime is 18079739. The reversal of 18079712 is 21797081.

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, 40133 + ... + 40580.

It is an arithmetic number, because the mean of its divisors is an integer number (1694994).

Almost surely, 218079712 is an apocalyptic number.

It is an amenable number.

18079712 is an abundant number, since it is smaller than the sum of its proper divisors (22600144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18079712 is an equidigital number, since it uses as much as digits as its factorization.

18079712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80730 (or 80722 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 18079712 is about 4252.0244590077. The cubic root of 18079712 is about 262.4604300142.

The spelling of 18079712 in words is "eighteen million, seventy-nine thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 80713 161426 322852 564991 645704 1129982 1291408 2259964 2582816 4519928 9039856 18079712