Search a number
-
+
12220331013 = 3211123437687
BaseRepresentation
bin10110110000110001…
…10111010000000101
31011112122201010200100
423120120313100011
5200011401043023
65340340034313
7611555046132
oct133030672005
934478633610
1012220331013
115201070620
122450692999
1311c99b9ac7
1483cdb3589
154b7c93c43
hex2d8637405

12220331013 has 12 divisors (see below), whose sum is σ = 19256279328. Its totient is φ = 7406261160.

The previous prime is 12220331003. The next prime is 12220331027. The reversal of 12220331013 is 31013302221.

It is not a de Polignac number, because 12220331013 - 217 = 12220199941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220331003) 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, 61718745 + ... + 61718942.

It is an arithmetic number, because the mean of its divisors is an integer number (1604689944).

Almost surely, 212220331013 is an apocalyptic number.

It is an amenable number.

12220331013 is a deficient number, since it is larger than the sum of its proper divisors (7035948315).

12220331013 is a wasteful number, since it uses less digits than its factorization.

12220331013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123437704 (or 123437701 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12220331013 its reverse (31013302221), we get a palindrome (43233633234).

The spelling of 12220331013 in words is "twelve billion, two hundred twenty million, three hundred thirty-one thousand, thirteen".

Divisors: 1 3 9 11 33 99 123437687 370313061 1110939183 1357814557 4073443671 12220331013