Search a number
-
+
12695031 = 329411499
BaseRepresentation
bin110000011011…
…010111110111
3212212222022100
4300123113313
511222220111
61132033143
7212622516
oct60332767
925788270
1012695031
117190a68
1243027b3
13282646b
14198667d
1511ab756
hexc1b5f7

12695031 has 12 divisors (see below), whose sum is σ = 18369000. Its totient is φ = 8448720.

The previous prime is 12695017. The next prime is 12695041. The reversal of 12695031 is 13059621.

It is not a de Polignac number, because 12695031 - 25 = 12694999 is a prime.

It is a super-2 number, since 2×126950312 = 322327624181922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12694986 and 12695004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12695041) 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, 7720 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (1530750).

Almost surely, 212695031 is an apocalyptic number.

12695031 is a deficient number, since it is larger than the sum of its proper divisors (5673969).

12695031 is a wasteful number, since it uses less digits than its factorization.

12695031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 12695031 is about 3563.0087005226. The cubic root of 12695031 is about 233.2802230596.

The spelling of 12695031 in words is "twelve million, six hundred ninety-five thousand, thirty-one".

Divisors: 1 3 9 941 1499 2823 4497 8469 13491 1410559 4231677 12695031