Search a number
-
+
12951156 = 2231139551
BaseRepresentation
bin110001011001…
…111001110100
3220100222122110
4301121321310
511303414111
61141331020
7215040321
oct61317164
926328573
1012951156
117346439
124406a70
1328b5c0a
141a11b48
15120c5a6
hexc59e74

12951156 has 24 divisors (see below), whose sum is σ = 30489984. Its totient is φ = 4278400.

The previous prime is 12951151. The next prime is 12951163. The reversal of 12951156 is 65115921.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951151) 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 7 ways as a sum of consecutive naturals, for example, 3420 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (1270416).

Almost surely, 212951156 is an apocalyptic number.

It is an amenable number.

12951156 is an abundant number, since it is smaller than the sum of its proper divisors (17538828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12951156 is a wasteful number, since it uses less digits than its factorization.

12951156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671 (or 9669 counting only the distinct ones).

The product of its digits is 2700, while the sum is 30.

The square root of 12951156 is about 3598.7714570392. The cubic root of 12951156 is about 234.8386156181.

The spelling of 12951156 in words is "twelve million, nine hundred fifty-one thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 9551 19102 28653 38204 57306 114612 1079263 2158526 3237789 4317052 6475578 12951156