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12855069 = 329711471
BaseRepresentation
bin110001000010…
…011100011101
3220012002211200
4301002130131
511242330234
61135310113
7214160223
oct61023435
926162750
1012855069
117290227
12437b339
132881266
1419c8b13
1511ddd99
hexc4271d

12855069 has 12 divisors (see below), whose sum is σ = 18600192. Its totient is φ = 8555400.

The previous prime is 12855061. The next prime is 12855103. The reversal of 12855069 is 96055821.

It is a happy number.

It is not a de Polignac number, because 12855069 - 23 = 12855061 is a prime.

It is a super-2 number, since 2×128550692 = 330505597989522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8004 + ... + 9474.

It is an arithmetic number, because the mean of its divisors is an integer number (1550016).

Almost surely, 212855069 is an apocalyptic number.

It is an amenable number.

12855069 is a deficient number, since it is larger than the sum of its proper divisors (5745123).

12855069 is a wasteful number, since it uses less digits than its factorization.

12855069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 12855069 is about 3585.3966307788. The cubic root of 12855069 is about 234.2564031452.

The spelling of 12855069 in words is "twelve million, eight hundred fifty-five thousand, sixty-nine".

Divisors: 1 3 9 971 1471 2913 4413 8739 13239 1428341 4285023 12855069