Base | Representation |
---|---|
bin | 111111100001111… |
… | …0101001111000001 |
3 | 12111120012010122001 |
4 | 1333003311033001 |
5 | 13331204222123 |
6 | 551305544001 |
7 | 103553146423 |
oct | 17703651701 |
9 | 5446163561 |
10 | 2131710913 |
11 | 9a4327a62 |
12 | 4b5aa5001 |
13 | 27c841807 |
14 | 163182813 |
15 | c722d0ad |
hex | 7f0f53c1 |
2131710913 has 2 divisors, whose sum is σ = 2131710914. Its totient is φ = 2131710912.
The previous prime is 2131710851. The next prime is 2131710923. The reversal of 2131710913 is 3190171312.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2129176449 + 2534464 = 46143^2 + 1592^2 .
It is a cyclic number.
It is not a de Polignac number, because 2131710913 - 217 = 2131579841 is a prime.
It is not a weakly prime, because it can be changed into another prime (2131710923) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065855456 + 1065855457.
It is an arithmetic number, because the mean of its divisors is an integer number (1065855457).
Almost surely, 22131710913 is an apocalyptic number.
It is an amenable number.
2131710913 is a deficient number, since it is larger than the sum of its proper divisors (1).
2131710913 is an equidigital number, since it uses as much as digits as its factorization.
2131710913 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1134, while the sum is 28.
The square root of 2131710913 is about 46170.4549793480. The cubic root of 2131710913 is about 1286.9927572092.
The spelling of 2131710913 in words is "two billion, one hundred thirty-one million, seven hundred ten thousand, nine hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •