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12975193 = 711215319
BaseRepresentation
bin110001011111…
…110001011001
3220102012121201
4301133301121
511310201233
61142034201
7215200360
oct61376131
926365551
1012975193
117362500
124418961
1328c3b3a
141a1a7d7
15121477d
hexc5fc59

12975193 has 12 divisors (see below), whose sum is σ = 16300480. Its totient is φ = 10109880.

The previous prime is 12975191. The next prime is 12975211. The reversal of 12975193 is 39157921.

It is not a de Polignac number, because 12975193 - 21 = 12975191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975191) 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, 6813 + ... + 8506.

Almost surely, 212975193 is an apocalyptic number.

It is an amenable number.

12975193 is a deficient number, since it is larger than the sum of its proper divisors (3325287).

12975193 is a wasteful number, since it uses less digits than its factorization.

12975193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15348 (or 15337 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 12975193 is about 3602.1095208225. The cubic root of 12975193 is about 234.9838105642.

The spelling of 12975193 in words is "twelve million, nine hundred seventy-five thousand, one hundred ninety-three".

Divisors: 1 7 11 77 121 847 15319 107233 168509 1179563 1853599 12975193