Search a number
-
+
12951133 = 135318797
BaseRepresentation
bin110001011001…
…111001011101
3220100222121121
4301121321131
511303414013
61141330541
7215040256
oct61317135
926328547
1012951133
117346418
124406a51
1328b5bc0
141a11b2d
15120c58d
hexc59e5d

12951133 has 8 divisors (see below), whose sum is σ = 14211288. Its totient is φ = 11728704.

The previous prime is 12951131. The next prime is 12951151. The reversal of 12951133 is 33115921.

It can be written as a sum of positive squares in 4 ways, for example, as 2883204 + 10067929 = 1698^2 + 3173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12951133 - 21 = 12951131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12951098 and 12951107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8710 + ... + 10087.

It is an arithmetic number, because the mean of its divisors is an integer number (1776411).

Almost surely, 212951133 is an apocalyptic number.

12951133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12951133 is a deficient number, since it is larger than the sum of its proper divisors (1260155).

12951133 is a wasteful number, since it uses less digits than its factorization.

12951133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18863.

The product of its digits is 810, while the sum is 25.

The square root of 12951133 is about 3598.7682615028. The cubic root of 12951133 is about 234.8384766012.

The spelling of 12951133 in words is "twelve million, nine hundred fifty-one thousand, one hundred thirty-three".

Divisors: 1 13 53 689 18797 244361 996241 12951133