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12975011 = 7972197
BaseRepresentation
bin110001011111…
…101110100011
3220102012100222
4301133232203
511310200021
61142033255
7215200010
oct61375643
926365328
1012975011
117362355
12441882b
1328c3a2a
141a1a707
1512146ab
hexc5fba3

12975011 has 12 divisors (see below), whose sum is σ = 15059088. Its totient is φ = 10950912.

The previous prime is 12974993. The next prime is 12975031. The reversal of 12975011 is 11057921.

It is a de Polignac number, because none of the positive numbers 2k-12975011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65765 + ... + 65961.

It is an arithmetic number, because the mean of its divisors is an integer number (1254924).

Almost surely, 212975011 is an apocalyptic number.

12975011 is a deficient number, since it is larger than the sum of its proper divisors (2084077).

12975011 is an frugal number, since it uses more digits than its factorization.

12975011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12975011 is about 3602.0842577597. The cubic root of 12975011 is about 234.9827118714.

The spelling of 12975011 in words is "twelve million, nine hundred seventy-five thousand, eleven".

Divisors: 1 7 97 197 679 1379 9409 19109 65863 133763 1853573 12975011