Base | Representation |
---|---|
bin | 10011000100000010011… |
… | …001110000011110110011 |
3 | 11122020100112010222022222 |
4 | 103010002121300132303 |
5 | 132430342331110031 |
6 | 2441450320351255 |
7 | 163434103411244 |
oct | 23040231603663 |
9 | 4566315128288 |
10 | 1310005331891 |
11 | 46562a949123 |
12 | 191a7a17552b |
13 | 966c0c30779 |
14 | 475942d8ccb |
15 | 241224d7e7b |
hex | 131026707b3 |
1310005331891 has 2 divisors, whose sum is σ = 1310005331892. Its totient is φ = 1310005331890.
The previous prime is 1310005331807. The next prime is 1310005331897. The reversal of 1310005331891 is 1981335000131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1310005331891 - 230 = 1308931590067 is a prime.
It is a super-2 number, since 2×13100053318912 (a number of 25 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1310005331897) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655002665945 + 655002665946.
It is an arithmetic number, because the mean of its divisors is an integer number (655002665946).
Almost surely, 21310005331891 is an apocalyptic number.
1310005331891 is a deficient number, since it is larger than the sum of its proper divisors (1).
1310005331891 is an equidigital number, since it uses as much as digits as its factorization.
1310005331891 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 9720, while the sum is 35.
The spelling of 1310005331891 in words is "one trillion, three hundred ten billion, five million, three hundred thirty-one thousand, eight hundred ninety-one".
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