Base | Representation |
---|---|
bin | 11000000110111100… |
… | …00101101000101010 |
3 | 1020102000202200001120 |
4 | 30003132011220222 |
5 | 203001414332223 |
6 | 5540200000110 |
7 | 635512466316 |
oct | 140336055052 |
9 | 36360680046 |
10 | 12943120938 |
11 | 5542066370 |
12 | 2612760036 |
13 | 12b3678457 |
14 | 8aada0b46 |
15 | 50b468be3 |
hex | 303785a2a |
12943120938 has 32 divisors (see below), whose sum is σ = 28637286912. Its totient is φ = 3866914800.
The previous prime is 12943120913. The next prime is 12943120943. The reversal of 12943120938 is 83902134921.
It is a self number, because there is not a number n which added to its sum of digits gives 12943120938.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1376356 + ... + 1385727.
It is an arithmetic number, because the mean of its divisors is an integer number (894915216).
Almost surely, 212943120938 is an apocalyptic number.
12943120938 is an abundant number, since it is smaller than the sum of its proper divisors (15694165974).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12943120938 is a wasteful number, since it uses less digits than its factorization.
12943120938 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2762170.
The product of its (nonzero) digits is 93312, while the sum is 42.
The spelling of 12943120938 in words is "twelve billion, nine hundred forty-three million, one hundred twenty thousand, nine hundred thirty-eight".
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