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12808874 = 2131034783
BaseRepresentation
bin110000110111…
…001010101010
3220002202110202
4300313022222
511234340444
61134312202
7213605441
oct60671252
926082422
1012808874
117259551
124358662
132866220
1419b5d58
1511d034e
hexc372aa

12808874 has 16 divisors (see below), whose sum is σ = 20896512. Its totient is φ = 5853168.

The previous prime is 12808853. The next prime is 12808891. The reversal of 12808874 is 47880821.

It is a happy number.

12808874 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, 287 + ... + 5069.

It is an arithmetic number, because the mean of its divisors is an integer number (1306032).

Almost surely, 212808874 is an apocalyptic number.

12808874 is a deficient number, since it is larger than the sum of its proper divisors (8087638).

12808874 is a wasteful number, since it uses less digits than its factorization.

12808874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 12808874 is about 3578.9487283279. The cubic root of 12808874 is about 233.9754643474.

The spelling of 12808874 in words is "twelve million, eight hundred eight thousand, eight hundred seventy-four".

Divisors: 1 2 13 26 103 206 1339 2678 4783 9566 62179 124358 492649 985298 6404437 12808874