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13928120 = 2352912007
BaseRepresentation
bin110101001000…
…011010111000
3222012121210022
4311020122320
512031144440
61214310012
7226246523
oct65103270
928177708
1013928120
117953448
1247b8308
132b687bb
141bc7bba
151351cb5
hexd486b8

13928120 has 32 divisors (see below), whose sum is σ = 32421600. Its totient is φ = 5378688.

The previous prime is 13928111. The next prime is 13928143. The reversal of 13928120 is 2182931.

It is a self number, because there is not a number n which added to its sum of digits gives 13928120.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4844 + ... + 7163.

It is an arithmetic number, because the mean of its divisors is an integer number (1013175).

Almost surely, 213928120 is an apocalyptic number.

13928120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13928120 is an abundant number, since it is smaller than the sum of its proper divisors (18493480).

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

13928120 is a wasteful number, since it uses less digits than its factorization.

13928120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12047 (or 12043 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13928120 is about 3732.0396568097. The cubic root of 13928120 is about 240.6010398361.

The spelling of 13928120 in words is "thirteen million, nine hundred twenty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 12007 24014 48028 60035 96056 120070 240140 348203 480280 696406 1392812 1741015 2785624 3482030 6964060 13928120