Base | Representation |
---|---|
bin | 11000010010011101… |
… | …11010100110100001 |
3 | 1020122202200211020102 |
4 | 30021032322212201 |
5 | 203201142310011 |
6 | 5553532152145 |
7 | 641065346453 |
oct | 141116724641 |
9 | 36582624212 |
10 | 13039806881 |
11 | 55916a3a02 |
12 | 263b008655 |
13 | 12ca6cb67a |
14 | 8b9b6c2d3 |
15 | 514bb673b |
hex | 3093ba9a1 |
13039806881 has 8 divisors (see below), whose sum is σ = 13553589504. Its totient is φ = 12534516720.
The previous prime is 13039806827. The next prime is 13039806907. The reversal of 13039806881 is 18860893031.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13039806881 - 218 = 13039544737 is a prime.
It is a super-2 number, since 2×130398068812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13039806811) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2119985 + ... + 2126126.
It is an arithmetic number, because the mean of its divisors is an integer number (1694198688).
Almost surely, 213039806881 is an apocalyptic number.
It is an amenable number.
13039806881 is a deficient number, since it is larger than the sum of its proper divisors (513782623).
13039806881 is an equidigital number, since it uses as much as digits as its factorization.
13039806881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4246231.
The product of its (nonzero) digits is 248832, while the sum is 47.
The spelling of 13039806881 in words is "thirteen billion, thirty-nine million, eight hundred six thousand, eight hundred eighty-one".
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