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12799806 = 2319112279
BaseRepresentation
bin110000110100…
…111100111110
3220002022000220
4300310330332
511234043211
61134202210
7213540135
oct60647476
926068026
1012799806
117252758
124353366
132862066
1419b291c
1511cc806
hexc34f3e

12799806 has 16 divisors (see below), whose sum is σ = 26947200. Its totient is φ = 4042008.

The previous prime is 12799783. The next prime is 12799811. The reversal of 12799806 is 60899721.

12799806 is nontrivially palindromic in base 5.

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, 56026 + ... + 56253.

It is an arithmetic number, because the mean of its divisors is an integer number (1684200).

Almost surely, 212799806 is an apocalyptic number.

12799806 is an abundant number, since it is smaller than the sum of its proper divisors (14147394).

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

12799806 is a wasteful number, since it uses less digits than its factorization.

12799806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112303.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 12799806 is about 3577.6816515727. The cubic root of 12799806 is about 233.9202372606.

The spelling of 12799806 in words is "twelve million, seven hundred ninety-nine thousand, eight hundred six".

Divisors: 1 2 3 6 19 38 57 114 112279 224558 336837 673674 2133301 4266602 6399903 12799806