Base | Representation |
---|---|
bin | 10111001101000010… |
… | …11100001110100111 |
3 | 1012011011220120101101 |
4 | 23212201130032213 |
5 | 201003102220042 |
6 | 5420050340531 |
7 | 620464445152 |
oct | 134641341647 |
9 | 35134816341 |
10 | 12457460647 |
11 | 5312a03625 |
12 | 24b7b8a747 |
13 | 1236b742b8 |
14 | 86269cc99 |
15 | 4cd9d46b7 |
hex | 2e685c3a7 |
12457460647 has 2 divisors, whose sum is σ = 12457460648. Its totient is φ = 12457460646.
The previous prime is 12457460593. The next prime is 12457460669. The reversal of 12457460647 is 74606475421.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12457460647 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12457460597 and 12457460606.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12457460347) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228730323 + 6228730324.
It is an arithmetic number, because the mean of its divisors is an integer number (6228730324).
Almost surely, 212457460647 is an apocalyptic number.
12457460647 is a deficient number, since it is larger than the sum of its proper divisors (1).
12457460647 is an equidigital number, since it uses as much as digits as its factorization.
12457460647 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1128960, while the sum is 46.
The spelling of 12457460647 in words is "twelve billion, four hundred fifty-seven million, four hundred sixty thousand, six hundred forty-seven".
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