Base | Representation |
---|---|
bin | 10111111111100000… |
… | …11001100100111000 |
3 | 1020020200112001201212 |
4 | 23333300121210320 |
5 | 202334441443334 |
6 | 5530052302252 |
7 | 634125045521 |
oct | 137760314470 |
9 | 36220461655 |
10 | 12880812344 |
11 | 550a978a64 |
12 | 25b5911988 |
13 | 12a37a076a |
14 | 8a29c1848 |
15 | 505c5bece |
hex | 2ffc19938 |
12880812344 has 16 divisors (see below), whose sum is σ = 24265988520. Its totient is φ = 6409882080.
The previous prime is 12880812319. The next prime is 12880812349. The reversal of 12880812344 is 44321808821.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12880812349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3813719 + ... + 3817094.
Almost surely, 212880812344 is an apocalyptic number.
It is an amenable number.
12880812344 is a deficient number, since it is larger than the sum of its proper divisors (11385176176).
12880812344 is a wasteful number, since it uses less digits than its factorization.
12880812344 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7631030 (or 7631026 counting only the distinct ones).
The product of its (nonzero) digits is 98304, while the sum is 41.
The spelling of 12880812344 in words is "twelve billion, eight hundred eighty million, eight hundred twelve thousand, three hundred forty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •