Base | Representation |
---|---|
bin | 10111011110101111… |
… | …10110010111111111 |
3 | 1012112112022011110212 |
4 | 23233113312113333 |
5 | 201304110104442 |
6 | 5442513023035 |
7 | 624246506204 |
oct | 135727662777 |
9 | 35475264425 |
10 | 12605941247 |
11 | 53897a8269 |
12 | 2539854a7b |
13 | 125b860743 |
14 | 8782adcab |
15 | 4dba63a82 |
hex | 2ef5f65ff |
12605941247 has 2 divisors, whose sum is σ = 12605941248. Its totient is φ = 12605941246.
The previous prime is 12605941213. The next prime is 12605941261. The reversal of 12605941247 is 74214950621.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12605941247 - 212 = 12605937151 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12605941207) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302970623 + 6302970624.
It is an arithmetic number, because the mean of its divisors is an integer number (6302970624).
Almost surely, 212605941247 is an apocalyptic number.
12605941247 is a deficient number, since it is larger than the sum of its proper divisors (1).
12605941247 is an equidigital number, since it uses as much as digits as its factorization.
12605941247 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 120960, while the sum is 41.
The spelling of 12605941247 in words is "twelve billion, six hundred five million, nine hundred forty-one thousand, two hundred forty-seven".
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