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13944456 = 2332293661
BaseRepresentation
bin110101001100…
…011010001000
3222020110012100
4311030122020
512032210311
61214513400
7226345251
oct65143210
928213170
1013944456
117964749
124805860
132b73076
141bcdb28
151356a56
hexd4c688

13944456 has 48 divisors (see below), whose sum is σ = 37952460. Its totient is φ = 4625280.

The previous prime is 13944439. The next prime is 13944481. The reversal of 13944456 is 65444931.

It can be written as a sum of positive squares in 2 ways, for example, as 11492100 + 2452356 = 3390^2 + 1566^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13944456.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20766 + ... + 21426.

Almost surely, 213944456 is an apocalyptic number.

It is an amenable number.

13944456 is an abundant number, since it is smaller than the sum of its proper divisors (24008004).

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

13944456 is a wasteful number, since it uses less digits than its factorization.

13944456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 959 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 13944456 is about 3734.2276309834. The cubic root of 13944456 is about 240.6950683898.

It can be divided in two parts, 13944 and 456, that added together give a square (14400 = 1202).

The spelling of 13944456 in words is "thirteen million, nine hundred forty-four thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 293 586 661 879 1172 1322 1758 1983 2344 2637 2644 3516 3966 5274 5288 5949 7032 7932 10548 11898 15864 21096 23796 47592 193673 387346 581019 774692 1162038 1549384 1743057 2324076 3486114 4648152 6972228 13944456