Base | Representation |
---|---|
bin | 10111010001001001… |
… | …00111110011001011 |
3 | 1012020120121200012122 |
4 | 23220210213303023 |
5 | 201040403131112 |
6 | 5423315401455 |
7 | 621362651366 |
oct | 135044476313 |
9 | 35216550178 |
10 | 12491848907 |
11 | 5330360a7a |
12 | 25075b328b |
13 | 1241024795 |
14 | 8670910dd |
15 | 4d1a28872 |
hex | 2e8927ccb |
12491848907 has 2 divisors, whose sum is σ = 12491848908. Its totient is φ = 12491848906.
The previous prime is 12491848879. The next prime is 12491848913. The reversal of 12491848907 is 70984819421.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12491848907 - 212 = 12491844811 is a prime.
It is not a weakly prime, because it can be changed into another prime (12491848007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6245924453 + 6245924454.
It is an arithmetic number, because the mean of its divisors is an integer number (6245924454).
Almost surely, 212491848907 is an apocalyptic number.
12491848907 is a deficient number, since it is larger than the sum of its proper divisors (1).
12491848907 is an equidigital number, since it uses as much as digits as its factorization.
12491848907 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1161216, while the sum is 53.
The spelling of 12491848907 in words is "twelve billion, four hundred ninety-one million, eight hundred forty-eight thousand, nine hundred seven".
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