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18314724 = 2231526227
BaseRepresentation
bin100010111011…
…1010111100100
31021110111002010
41011313113210
514142032344
61452314220
7311446461
oct105672744
937414063
1018314724
11a37a13a
126172970
133a4331c
14260a668
15191b8b9
hex11775e4

18314724 has 12 divisors (see below), whose sum is σ = 42734384. Its totient is φ = 6104904.

The previous prime is 18314719. The next prime is 18314731. The reversal of 18314724 is 42741381.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18314691 and 18314700.

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, 763102 + ... + 763125.

Almost surely, 218314724 is an apocalyptic number.

It is an amenable number.

18314724 is an abundant number, since it is smaller than the sum of its proper divisors (24419660).

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

18314724 is a wasteful number, since it uses less digits than its factorization.

18314724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526234 (or 1526232 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 18314724 is about 4279.5705392013. The cubic root of 18314724 is about 263.5927490420.

It can be divided in two parts, 1831 and 4724, that added together give a triangular number (6555 = T114).

The spelling of 18314724 in words is "eighteen million, three hundred fourteen thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 1526227 3052454 4578681 6104908 9157362 18314724