Base | Representation |
---|---|
bin | 10111010101110111… |
… | …11000101111011001 |
3 | 1012100100020021002020 |
4 | 23222323320233121 |
5 | 201131031031131 |
6 | 5431253325053 |
7 | 622354003242 |
oct | 135273705731 |
9 | 35310207066 |
10 | 12531502041 |
11 | 5350784a63 |
12 | 2518936789 |
13 | 12492c9486 |
14 | 86c453cc9 |
15 | 4d525c996 |
hex | 2eaef8bd9 |
12531502041 has 16 divisors (see below), whose sum is σ = 17962291200. Its totient is φ = 7746234768.
The previous prime is 12531502033. The next prime is 12531502063. The reversal of 12531502041 is 14020513521.
It is a happy number.
It is not a de Polignac number, because 12531502041 - 23 = 12531502033 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12531502021) 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, 2336161 + ... + 2341518.
It is an arithmetic number, because the mean of its divisors is an integer number (1122643200).
Almost surely, 212531502041 is an apocalyptic number.
It is an amenable number.
12531502041 is a deficient number, since it is larger than the sum of its proper divisors (5430789159).
12531502041 is a wasteful number, since it uses less digits than its factorization.
12531502041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4677748.
The product of its (nonzero) digits is 1200, while the sum is 24.
The spelling of 12531502041 in words is "twelve billion, five hundred thirty-one million, five hundred two thousand, forty-one".
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