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13440868 = 227716761
BaseRepresentation
bin110011010001…
…011101100100
3221021212101221
4303101131210
511420101433
61200030124
7222150130
oct63213544
927255357
1013440868
117650361
124602344
132a27a9c
141adc3c0
1512a772d
hexcd1764

13440868 has 24 divisors (see below), whose sum is σ = 27264384. Its totient is φ = 5678400.

The previous prime is 13440859. The next prime is 13440881. The reversal of 13440868 is 86804431.

13440868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1393 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (1136016).

Almost surely, 213440868 is an apocalyptic number.

It is an amenable number.

13440868 is an abundant number, since it is smaller than the sum of its proper divisors (13823516).

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

13440868 is a wasteful number, since it uses less digits than its factorization.

13440868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6843 (or 6841 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 13440868 is about 3666.1789372588. The cubic root of 13440868 is about 237.7619963776.

The spelling of 13440868 in words is "thirteen million, four hundred forty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 71 142 284 497 994 1988 6761 13522 27044 47327 94654 189308 480031 960062 1920124 3360217 6720434 13440868