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12806079 = 3111329851
BaseRepresentation
bin110000110110…
…011110111111
3220002121122020
4300312132333
511234243304
61134251223
7213564336
oct60663677
926077566
1012806079
117257440
124356b13
132864b80
1419b4d1d
1511ce5d9
hexc367bf

12806079 has 16 divisors (see below), whose sum is σ = 20060544. Its totient is φ = 7164000.

The previous prime is 12806077. The next prime is 12806099. The reversal of 12806079 is 97060821.

It is not a de Polignac number, because 12806079 - 21 = 12806077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12806077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14497 + ... + 15354.

It is an arithmetic number, because the mean of its divisors is an integer number (1253784).

Almost surely, 212806079 is an apocalyptic number.

12806079 is a deficient number, since it is larger than the sum of its proper divisors (7254465).

12806079 is a wasteful number, since it uses less digits than its factorization.

12806079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29878.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 12806079 is about 3578.5582292314. The cubic root of 12806079 is about 233.9584446625.

The spelling of 12806079 in words is "twelve million, eight hundred six thousand, seventy-nine".

Divisors: 1 3 11 13 33 39 143 429 29851 89553 328361 388063 985083 1164189 4268693 12806079