Base | Representation |
---|---|
bin | 11000101000010100… |
… | …01000011001001111 |
3 | 1021010112121011220200 |
4 | 30110022020121033 |
5 | 204040103231111 |
6 | 10024040544543 |
7 | 645452340606 |
oct | 142412103117 |
9 | 37115534820 |
10 | 13223102031 |
11 | 56761072a7 |
12 | 2690482153 |
13 | 1329687339 |
14 | 8d6242a3d |
15 | 525d21256 |
hex | 31428864f |
13223102031 has 12 divisors (see below), whose sum is σ = 19101936360. Its totient is φ = 8814524400.
The previous prime is 13223102021. The next prime is 13223102047. The reversal of 13223102031 is 13020132231.
13223102031 is a `hidden beast` number, since 1 + 322 + 310 + 2 + 0 + 31 = 666.
It is not a de Polignac number, because 13223102031 - 29 = 13223101519 is a prime.
It is a super-2 number, since 2×132231020312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13223101995 and 13223102013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13223102021) 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, 30081 + ... + 165381.
It is an arithmetic number, because the mean of its divisors is an integer number (1591828030).
Almost surely, 213223102031 is an apocalyptic number.
13223102031 is a deficient number, since it is larger than the sum of its proper divisors (5878834329).
13223102031 is a wasteful number, since it uses less digits than its factorization.
13223102031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146166 (or 146163 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 13223102031 its reverse (13020132231), we get a palindrome (26243234262).
The spelling of 13223102031 in words is "thirteen billion, two hundred twenty-three million, one hundred two thousand, thirty-one".
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