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13065808 = 247432713
BaseRepresentation
bin110001110101…
…111001010000
3220120210220211
4301311321100
511321101213
61144013504
7216025510
oct61657120
926523824
1013065808
117414598
124461294
132926162
141a41840
15123153d
hexc75e50

13065808 has 40 divisors (see below), whose sum is σ = 29615168. Its totient is φ = 5467392.

The previous prime is 13065799. The next prime is 13065821. The reversal of 13065808 is 80856031.

13065808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13065808.

It is a congruent number.

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, 3460 + ... + 6172.

Almost surely, 213065808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13065808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14807584).

13065808 is an abundant number, since it is smaller than the sum of its proper divisors (16549360).

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

13065808 is a wasteful number, since it uses less digits than its factorization.

13065808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 13065808 is about 3614.6656830197. The cubic root of 13065808 is about 235.5295617586.

The spelling of 13065808 in words is "thirteen million, sixty-five thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 43 56 86 112 172 301 344 602 688 1204 2408 2713 4816 5426 10852 18991 21704 37982 43408 75964 116659 151928 233318 303856 466636 816613 933272 1633226 1866544 3266452 6532904 13065808