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13979272 = 2313113339
BaseRepresentation
bin110101010100…
…111010001000
3222022012221211
4311110322020
512034314042
61215342504
7226551616
oct65247210
928265854
1013979272
11798891a
124821a34
132b85b78
141bdc6b6
151362017
hexd54e88

13979272 has 16 divisors (see below), whose sum is σ = 26413200. Its totient is φ = 6935760.

The previous prime is 13979249. The next prime is 13979279. The reversal of 13979272 is 27297931.

It is not an unprimeable number, because it can be changed into a prime (13979279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5622 + ... + 7717.

It is an arithmetic number, because the mean of its divisors is an integer number (1650825).

Almost surely, 213979272 is an apocalyptic number.

It is an amenable number.

13979272 is a deficient number, since it is larger than the sum of its proper divisors (12433928).

13979272 is a wasteful number, since it uses less digits than its factorization.

13979272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13476 (or 13472 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 13979272 is about 3738.8864652460. The cubic root of 13979272 is about 240.8952214072.

The spelling of 13979272 in words is "thirteen million, nine hundred seventy-nine thousand, two hundred seventy-two".

Divisors: 1 2 4 8 131 262 524 1048 13339 26678 53356 106712 1747409 3494818 6989636 13979272