Base | Representation |
---|---|
bin | 100111000111001… |
… | …1100100111000001 |
3 | 10101110112100010121 |
4 | 1032032130213001 |
5 | 10141434110144 |
6 | 334121300241 |
7 | 44344205236 |
oct | 11616344701 |
9 | 3343470117 |
10 | 1312410049 |
11 | 613904105 |
12 | 307634681 |
13 | 17bb917c2 |
14 | c643178d |
15 | 7a342384 |
hex | 4e39c9c1 |
1312410049 has 2 divisors, whose sum is σ = 1312410050. Its totient is φ = 1312410048.
The previous prime is 1312410023. The next prime is 1312410089. The reversal of 1312410049 is 9400142131.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 840130225 + 472279824 = 28985^2 + 21732^2 .
It is an emirp because it is prime and its reverse (9400142131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1312410049 - 221 = 1310312897 is a prime.
It is not a weakly prime, because it can be changed into another prime (1312410089) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656205024 + 656205025.
It is an arithmetic number, because the mean of its divisors is an integer number (656205025).
Almost surely, 21312410049 is an apocalyptic number.
It is an amenable number.
1312410049 is a deficient number, since it is larger than the sum of its proper divisors (1).
1312410049 is an equidigital number, since it uses as much as digits as its factorization.
1312410049 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 864, while the sum is 25.
The square root of 1312410049 is about 36227.2004024600. The cubic root of 1312410049 is about 1094.8547722021.
The spelling of 1312410049 in words is "one billion, three hundred twelve million, four hundred ten thousand, forty-nine".
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