Base | Representation |
---|---|
bin | 10111111111111101… |
… | …11011000010000000 |
3 | 1020020221200111000122 |
4 | 23333332323002000 |
5 | 202341430310032 |
6 | 5530310035412 |
7 | 634202313011 |
oct | 137776730200 |
9 | 36227614018 |
10 | 12884619392 |
11 | 5512039287 |
12 | 25b7048b68 |
13 | 12a4504558 |
14 | 8a32d3008 |
15 | 506260012 |
hex | 2fffbb080 |
12884619392 has 72 divisors (see below), whose sum is σ = 26203926735. Its totient is φ = 6310676736.
The previous prime is 12884619347. The next prime is 12884619421. The reversal of 12884619392 is 29391648821.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 6442309696 + 6442309696 = 80264^2 + 80264^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=80264.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 101453633 + ... + 101453759.
Almost surely, 212884619392 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12884619392
12884619392 is an abundant number, since it is smaller than the sum of its proper divisors (13319307343).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12884619392 is an frugal number, since it uses more digits than its factorization.
12884619392 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 426 (or 208 counting only the distinct ones).
The product of its digits is 1492992, while the sum is 53.
The spelling of 12884619392 in words is "twelve billion, eight hundred eighty-four million, six hundred nineteen thousand, three hundred ninety-two".
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