Base | Representation |
---|---|
bin | 11000101110001101… |
… | …00000110001110101 |
3 | 1021020222112002120211 |
4 | 30113012200301311 |
5 | 204140224004411 |
6 | 10033003225421 |
7 | 646622155330 |
oct | 142706406165 |
9 | 37228462524 |
10 | 13272484981 |
11 | 56a0a76458 |
12 | 26a4b18271 |
13 | 1336987912 |
14 | 8dca19617 |
15 | 52a328221 |
hex | 3171a0c75 |
13272484981 has 32 divisors (see below), whose sum is σ = 15663283200. Its totient is φ = 11012302080.
The previous prime is 13272484969. The next prime is 13272485003. The reversal of 13272484981 is 18948427231.
It is a cyclic number.
It is not a de Polignac number, because 13272484981 - 29 = 13272484469 is a prime.
It is a super-2 number, since 2×132724849812 (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 (13272484921) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17169711 + ... + 17170483.
It is an arithmetic number, because the mean of its divisors is an integer number (489477600).
Almost surely, 213272484981 is an apocalyptic number.
It is an amenable number.
13272484981 is a deficient number, since it is larger than the sum of its proper divisors (2390798219).
13272484981 is an equidigital number, since it uses as much as digits as its factorization.
13272484981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1429.
The product of its digits is 774144, while the sum is 49.
The spelling of 13272484981 in words is "thirteen billion, two hundred seventy-two million, four hundred eighty-four thousand, nine hundred eighty-one".
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