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12975111 = 321441679
BaseRepresentation
bin110001011111…
…110000000111
3220102012111200
4301133300013
511310200421
61142033543
7215200212
oct61376007
926365450
1012975111
117362436
1244188b3
1328c3aa6
141a1a779
151214726
hexc5fc07

12975111 has 6 divisors (see below), whose sum is σ = 18741840. Its totient is φ = 8650068.

The previous prime is 12975101. The next prime is 12975113. The reversal of 12975111 is 11157921.

12975111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12975111 - 26 = 12975047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 720831 + ... + 720848.

It is an arithmetic number, because the mean of its divisors is an integer number (3123640).

Almost surely, 212975111 is an apocalyptic number.

12975111 is a deficient number, since it is larger than the sum of its proper divisors (5766729).

12975111 is a wasteful number, since it uses less digits than its factorization.

12975111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441685 (or 1441682 counting only the distinct ones).

The product of its digits is 630, while the sum is 27.

The square root of 12975111 is about 3602.0981385853. The cubic root of 12975111 is about 234.9833155500.

The spelling of 12975111 in words is "twelve million, nine hundred seventy-five thousand, one hundred eleven".

Divisors: 1 3 9 1441679 4325037 12975111