Base | Representation |
---|---|
bin | 10111110101100110… |
… | …11100110011111100 |
3 | 1020000220011211121221 |
4 | 23322303130303330 |
5 | 202202204212243 |
6 | 5513523403124 |
7 | 632065606240 |
oct | 137263346374 |
9 | 36026154557 |
10 | 12797725948 |
11 | 5477a89a17 |
12 | 2591b234a4 |
13 | 128c4cc607 |
14 | 895954420 |
15 | 4ed7e8bed |
hex | 2facdccfc |
12797725948 has 18 divisors (see below), whose sum is σ = 25596649176. Its totient is φ = 5484483144.
The previous prime is 12797725907. The next prime is 12797725981. The reversal of 12797725948 is 84952779721.
It is a super-2 number, since 2×127977259482 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 587923 + ... + 609301.
Almost surely, 212797725948 is an apocalyptic number.
It is an amenable number.
12797725948 is an abundant number, since it is smaller than the sum of its proper divisors (12798923228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12797725948 is an frugal number, since it uses more digits than its factorization.
12797725948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42769 (or 21388 counting only the distinct ones).
The product of its digits is 17781120, while the sum is 61.
The spelling of 12797725948 in words is "twelve billion, seven hundred ninety-seven million, seven hundred twenty-five thousand, nine hundred forty-eight".
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