Base | Representation |
---|---|
bin | 10111101111111011… |
… | …00111110001010111 |
3 | 1012220120111012002211 |
4 | 23313331213301113 |
5 | 202103003420011 |
6 | 5505102014251 |
7 | 630646504300 |
oct | 136775476127 |
9 | 35816435084 |
10 | 12750060631 |
11 | 54530932a0 |
12 | 2579b77387 |
13 | 1282680a99 |
14 | 88d4a77a7 |
15 | 4e9530b21 |
hex | 2f7f67c57 |
12750060631 has 24 divisors (see below), whose sum is σ = 16270554240. Its totient is φ = 9879534000.
The previous prime is 12750060629. The next prime is 12750060643. The reversal of 12750060631 is 13606005721.
It is not a de Polignac number, because 12750060631 - 21 = 12750060629 is a prime.
It is a super-2 number, since 2×127500606312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12750060593 and 12750060602.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12750060601) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30406 + ... + 162556.
It is an arithmetic number, because the mean of its divisors is an integer number (677939760).
Almost surely, 212750060631 is an apocalyptic number.
12750060631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
12750060631 is a deficient number, since it is larger than the sum of its proper divisors (3520493609).
12750060631 is a wasteful number, since it uses less digits than its factorization.
12750060631 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 132355 (or 132348 counting only the distinct ones).
The product of its (nonzero) digits is 7560, while the sum is 31.
The spelling of 12750060631 in words is "twelve billion, seven hundred fifty million, sixty thousand, six hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •