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13977080 = 2351326879
BaseRepresentation
bin110101010100…
…010111111000
3222022002221122
4311110113320
512034231310
61215324412
7226542335
oct65242770
928262848
1013977080
117987207
124820708
132b84b80
141bdb98c
151361555
hexd545f8

13977080 has 32 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 5160576.

The previous prime is 13977079. The next prime is 13977097. The reversal of 13977080 is 8077931.

It is a self number, because there is not a number n which added to its sum of digits gives 13977080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12920 + ... + 13959.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 213977080 is an apocalyptic number.

13977080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13977080 is an abundant number, since it is smaller than the sum of its proper divisors (19891720).

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

13977080 is a wasteful number, since it uses less digits than its factorization.

13977080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26903 (or 26899 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 13977080 is about 3738.5933183485. The cubic root of 13977080 is about 240.8826296707.

The spelling of 13977080 in words is "thirteen million, nine hundred seventy-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 26879 53758 107516 134395 215032 268790 349427 537580 698854 1075160 1397708 1747135 2795416 3494270 6988540 13977080