Base | Representation |
---|---|
bin | 10111001110101110… |
… | …00011000111110101 |
3 | 1012012011100112101201 |
4 | 23213113003013311 |
5 | 201020201413324 |
6 | 5421311452501 |
7 | 621025054633 |
oct | 134727030765 |
9 | 35164315351 |
10 | 12471513589 |
11 | 531a931827 |
12 | 2500827131 |
13 | 1239a54852 |
14 | 8644ba353 |
15 | 4ced5d444 |
hex | 2e75c31f5 |
12471513589 has 2 divisors, whose sum is σ = 12471513590. Its totient is φ = 12471513588.
The previous prime is 12471513547. The next prime is 12471513617. The reversal of 12471513589 is 98531517421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 11272068900 + 1199444689 = 106170^2 + 34633^2 .
It is a cyclic number.
It is not a de Polignac number, because 12471513589 - 215 = 12471480821 is a prime.
It is a super-2 number, since 2×124715135892 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12471513529) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235756794 + 6235756795.
It is an arithmetic number, because the mean of its divisors is an integer number (6235756795).
Almost surely, 212471513589 is an apocalyptic number.
It is an amenable number.
12471513589 is a deficient number, since it is larger than the sum of its proper divisors (1).
12471513589 is an equidigital number, since it uses as much as digits as its factorization.
12471513589 is an evil number, because the sum of its binary digits is even.
The product of its digits is 302400, while the sum is 46.
The spelling of 12471513589 in words is "twelve billion, four hundred seventy-one million, five hundred thirteen thousand, five hundred eighty-nine".
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