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18147714 = 2313232663
BaseRepresentation
bin100010100111…
…0100110000010
31021010222222120
41011032212002
514121211324
61444545110
7310152534
oct105164602
937128876
1018147714
11a275712
1260b2196
1339b52c0
1425a5854
1518d7179
hex114e982

18147714 has 16 divisors (see below), whose sum is σ = 39087552. Its totient is φ = 5583888.

The previous prime is 18147709. The next prime is 18147743. The reversal of 18147714 is 41774181.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116254 + ... + 116409.

It is an arithmetic number, because the mean of its divisors is an integer number (2442972).

Almost surely, 218147714 is an apocalyptic number.

18147714 is an abundant number, since it is smaller than the sum of its proper divisors (20939838).

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

18147714 is a wasteful number, since it uses less digits than its factorization.

18147714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232681.

The product of its digits is 6272, while the sum is 33.

The square root of 18147714 is about 4260.0133802607. The cubic root of 18147714 is about 262.7890765507.

It can be divided in two parts, 181 and 47714, that added together give a triangular number (47895 = T309).

The spelling of 18147714 in words is "eighteen million, one hundred forty-seven thousand, seven hundred fourteen".

Divisors: 1 2 3 6 13 26 39 78 232663 465326 697989 1395978 3024619 6049238 9073857 18147714