Base | Representation |
---|---|
bin | 11000010010111110… |
… | …00001111010011011 |
3 | 1020200001122102211010 |
4 | 30021133001322123 |
5 | 203203232444011 |
6 | 5554202505003 |
7 | 641146302165 |
oct | 141137017233 |
9 | 36601572733 |
10 | 13044031131 |
11 | 559401971a |
12 | 2640505163 |
13 | 12cb54a321 |
14 | 8ba54b935 |
15 | 51524d1a6 |
hex | 3097c1e9b |
13044031131 has 16 divisors (see below), whose sum is σ = 17563392000. Its totient is φ = 8610427488.
The previous prime is 13044031129. The next prime is 13044031139. The reversal of 13044031131 is 13113044031.
It is not a de Polignac number, because 13044031131 - 21 = 13044031129 is a prime.
It is a super-2 number, since 2×130440311312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13044031098 and 13044031107.
It is not an unprimeable number, because it can be changed into a prime (13044031139) 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, 709645 + ... + 727793.
It is an arithmetic number, because the mean of its divisors is an integer number (1097712000).
Almost surely, 213044031131 is an apocalyptic number.
13044031131 is a deficient number, since it is larger than the sum of its proper divisors (4519360869).
13044031131 is a wasteful number, since it uses less digits than its factorization.
13044031131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20498.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 13044031131 its reverse (13113044031), we get a palindrome (26157075162).
The spelling of 13044031131 in words is "thirteen billion, forty-four million, thirty-one thousand, one hundred thirty-one".
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