Base | Representation |
---|---|
bin | 11000001111010011… |
… | …10101101100010111 |
3 | 1020120220211122200000 |
4 | 30013221311230113 |
5 | 203122401411411 |
6 | 5551144222343 |
7 | 640324211655 |
oct | 140751655427 |
9 | 36526748600 |
10 | 13013310231 |
11 | 5578746649 |
12 | 263216a9b3 |
13 | 12c508218c |
14 | 8b6431dd5 |
15 | 5126d0956 |
hex | 307a75b17 |
13013310231 has 48 divisors (see below), whose sum is σ = 20997150720. Its totient is φ = 8030547360.
The previous prime is 13013310209. The next prime is 13013310257. The reversal of 13013310231 is 13201331031.
It is a happy number.
13013310231 is a `hidden beast` number, since 1 + 301 + 331 + 0 + 2 + 31 = 666.
It is not a de Polignac number, because 13013310231 - 213 = 13013302039 is a prime.
It is a super-2 number, since 2×130133102312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13013310131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135705 + ... + 210813.
It is an arithmetic number, because the mean of its divisors is an integer number (437440640).
Almost surely, 213013310231 is an apocalyptic number.
13013310231 is a deficient number, since it is larger than the sum of its proper divisors (7983840489).
13013310231 is an equidigital number, since it uses as much as digits as its factorization.
13013310231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75178 (or 75166 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 13013310231 its reverse (13201331031), we get a palindrome (26214641262).
The spelling of 13013310231 in words is "thirteen billion, thirteen million, three hundred ten thousand, two hundred thirty-one".
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