Search a number
-
+
12513425212 = 22171231149489
BaseRepresentation
bin10111010011101101…
…11011011100111100
31012022002012212100001
423221312323130330
5201111414101322
65425410044044
7622044234151
oct135166733474
935262185301
1012513425212
115341558632
122512879624
13124563a522
14869caa228
154d388b827
hex2e9dbb73c

12513425212 has 24 divisors (see below), whose sum is σ = 23205631680. Its totient is φ = 5883847680.

The previous prime is 12513425191. The next prime is 12513425231. The reversal of 12513425212 is 21252431521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8964 + ... + 158452.

It is an arithmetic number, because the mean of its divisors is an integer number (966901320).

Almost surely, 212513425212 is an apocalyptic number.

It is an amenable number.

12513425212 is a deficient number, since it is larger than the sum of its proper divisors (10692206468).

12513425212 is a wasteful number, since it uses less digits than its factorization.

12513425212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150741 (or 150739 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

Adding to 12513425212 its reverse (21252431521), we get a palindrome (33765856733).

The spelling of 12513425212 in words is "twelve billion, five hundred thirteen million, four hundred twenty-five thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 1231 2462 4924 20927 41854 83708 149489 298978 597956 2541313 5082626 10165252 184020959 368041918 736083836 3128356303 6256712606 12513425212