Base | Representation |
---|---|
bin | 10010111000101000… |
… | …10100101001011001 |
3 | 222011120212200011122 |
4 | 21130110110221121 |
5 | 131231011002123 |
6 | 4354020535025 |
7 | 506151042203 |
oct | 113424245131 |
9 | 28146780148 |
10 | 10138765913 |
11 | 4333083991 |
12 | 1b6b551475 |
13 | c57684b93 |
14 | 6c2765773 |
15 | 3e516dbc8 |
hex | 25c514a59 |
10138765913 has 2 divisors, whose sum is σ = 10138765914. Its totient is φ = 10138765912.
The previous prime is 10138765873. The next prime is 10138765957. The reversal of 10138765913 is 31956783101.
It is an a-pointer prime, because the next prime (10138765957) can be obtained adding 10138765913 to its sum of digits (44).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 5915455744 + 4223310169 = 76912^2 + 64987^2 .
It is a cyclic number.
It is not a de Polignac number, because 10138765913 - 28 = 10138765657 is a prime.
It is a super-2 number, since 2×101387659132 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (10138765993) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5069382956 + 5069382957.
It is an arithmetic number, because the mean of its divisors is an integer number (5069382957).
Almost surely, 210138765913 is an apocalyptic number.
It is an amenable number.
10138765913 is a deficient number, since it is larger than the sum of its proper divisors (1).
10138765913 is an equidigital number, since it uses as much as digits as its factorization.
10138765913 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 136080, while the sum is 44.
The spelling of 10138765913 in words is "ten billion, one hundred thirty-eight million, seven hundred sixty-five thousand, nine hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •