Base | Representation |
---|---|
bin | 11000101001011001… |
… | …11000100100000111 |
3 | 1021011011202000202111 |
4 | 30110230320210013 |
5 | 204044421242411 |
6 | 10025004121451 |
7 | 645622643140 |
oct | 142454704407 |
9 | 37134660674 |
10 | 13232212231 |
11 | 5680269997 |
12 | 2693536287 |
13 | 132b526ba4 |
14 | 8d7534ac7 |
15 | 526a20721 |
hex | 314b38907 |
13232212231 has 16 divisors (see below), whose sum is σ = 15192612864. Its totient is φ = 11289456864.
The previous prime is 13232212187. The next prime is 13232212241. The reversal of 13232212231 is 13221223231.
It is a de Polignac number, because none of the positive numbers 2k-13232212231 is a prime.
It is a super-2 number, since 2×132322122312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13232212241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397445 + ... + 1406881.
It is an arithmetic number, because the mean of its divisors is an integer number (949538304).
Almost surely, 213232212231 is an apocalyptic number.
13232212231 is a deficient number, since it is larger than the sum of its proper divisors (1960400633).
13232212231 is an equidigital number, since it uses as much as digits as its factorization.
13232212231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10350.
The product of its digits is 864, while the sum is 22.
Adding to 13232212231 its reverse (13221223231), we get a palindrome (26453435462).
The spelling of 13232212231 in words is "thirteen billion, two hundred thirty-two million, two hundred twelve thousand, two hundred thirty-one".
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