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12975016 = 231621877
BaseRepresentation
bin110001011111…
…101110101000
3220102012101011
4301133232220
511310200031
61142033304
7215200015
oct61375650
926365334
1012975016
11736235a
124418834
1328c3a32
141a1a70c
1512146b1
hexc5fba8

12975016 has 8 divisors (see below), whose sum is σ = 24328170. Its totient is φ = 6487504.

The previous prime is 12974993. The next prime is 12975031. The reversal of 12975016 is 61057921.

It can be written as a sum of positive squares in only one way, i.e., 9326916 + 3648100 = 3054^2 + 1910^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810931 + ... + 810946.

Almost surely, 212975016 is an apocalyptic number.

It is an amenable number.

12975016 is a deficient number, since it is larger than the sum of its proper divisors (11353154).

12975016 is a wasteful number, since it uses less digits than its factorization.

12975016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621883 (or 1621879 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 12975016 is about 3602.0849518022. The cubic root of 12975016 is about 234.9827420554.

The spelling of 12975016 in words is "twelve million, nine hundred seventy-five thousand, sixteen".

Divisors: 1 2 4 8 1621877 3243754 6487508 12975016