Base | Representation |
---|---|
bin | 11000000011000101… |
… | …11111001011100000 |
3 | 1020022210001011201200 |
4 | 30001202333023200 |
5 | 202420134211114 |
6 | 5533044201200 |
7 | 634641264246 |
oct | 140142771340 |
9 | 36283034650 |
10 | 12910850784 |
11 | 5525925317 |
12 | 2603999200 |
13 | 12a9a8a0a0 |
14 | 8a69a0796 |
15 | 5086e2409 |
hex | 3018bf2e0 |
12910850784 has 144 divisors (see below), whose sum is σ = 39638237184. Its totient is φ = 3962649600.
The previous prime is 12910850783. The next prime is 12910850801. The reversal of 12910850784 is 48705801921.
12910850784 is a `hidden beast` number, since 129 + 10 + 8 + 507 + 8 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12910850783) 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, 1572129 + ... + 1580319.
It is an arithmetic number, because the mean of its divisors is an integer number (275265536).
Almost surely, 212910850784 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 12910850784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19819118592).
12910850784 is an abundant number, since it is smaller than the sum of its proper divisors (26727386400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12910850784 is a wasteful number, since it uses less digits than its factorization.
12910850784 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8641 (or 8630 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 45.
The spelling of 12910850784 in words is "twelve billion, nine hundred ten million, eight hundred fifty thousand, seven hundred eighty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.027 sec. • engine limits •