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13805386 = 274092411
BaseRepresentation
bin110100101010…
…011101001010
3221222101102121
4310222131022
512013233021
61211521454
7225225640
oct64523512
927871377
1013805386
11787a211
12475928a
132b2498a
141b95190
15132a741
hexd2a74a

13805386 has 16 divisors (see below), whose sum is σ = 23734080. Its totient is φ = 5899680.

The previous prime is 13805371. The next prime is 13805401. The reversal of 13805386 is 68350831.

It is a happy number.

13805386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13805371) and next prime (13805401).

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, 4521 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (1483380).

Almost surely, 213805386 is an apocalyptic number.

13805386 is a deficient number, since it is larger than the sum of its proper divisors (9928694).

13805386 is a wasteful number, since it uses less digits than its factorization.

13805386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 13805386 is about 3715.5599847129. The cubic root of 13805386 is about 239.8922317081.

The spelling of 13805386 in words is "thirteen million, eight hundred five thousand, three hundred eighty-six".

Divisors: 1 2 7 14 409 818 2411 2863 4822 5726 16877 33754 986099 1972198 6902693 13805386