Base | Representation |
---|---|
bin | 11000001010001110… |
… | …01010100001011000 |
3 | 1020110221121002212201 |
4 | 30011013022201120 |
5 | 203030442303242 |
6 | 5543022215544 |
7 | 636265561660 |
oct | 140507124130 |
9 | 36427532781 |
10 | 12970666072 |
11 | 555666a441 |
12 | 261ba245b4 |
13 | 12b92a0c50 |
14 | 8b08d11a0 |
15 | 50daaa4b7 |
hex | 3051ca858 |
12970666072 has 32 divisors (see below), whose sum is σ = 29932308000. Its totient is φ = 5131252224.
The previous prime is 12970666021. The next prime is 12970666081. The reversal of 12970666072 is 27066607921.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8907697 + ... + 8909152.
It is an arithmetic number, because the mean of its divisors is an integer number (935384625).
Almost surely, 212970666072 is an apocalyptic number.
It is an amenable number.
12970666072 is an abundant number, since it is smaller than the sum of its proper divisors (16961641928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12970666072 is a wasteful number, since it uses less digits than its factorization.
12970666072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17816875 (or 17816871 counting only the distinct ones).
The product of its (nonzero) digits is 381024, while the sum is 46.
The spelling of 12970666072 in words is "twelve billion, nine hundred seventy million, six hundred sixty-six thousand, seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •