Base | Representation |
---|---|
bin | 11000001011011011… |
… | …00101100100110000 |
3 | 1020111122112211110010 |
4 | 30011231211210300 |
5 | 203041032111402 |
6 | 5544022134520 |
7 | 636450312141 |
oct | 140555454460 |
9 | 36448484403 |
10 | 12980738352 |
11 | 556131993a |
12 | 2623281440 |
13 | 12bb3b968a |
14 | 8b1d93ac8 |
15 | 50e8e9a6c |
hex | 305b65930 |
12980738352 has 20 divisors (see below), whose sum is σ = 33533574200. Its totient is φ = 4326912768.
The previous prime is 12980738299. The next prime is 12980738369. The reversal of 12980738352 is 25383708921.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 270432049 = 12980738352 / (1 + 2 + 9 + 8 + 0 + 7 + 3 + 8 + 3 + 5 + 2).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135215977 + ... + 135216072.
It is an arithmetic number, because the mean of its divisors is an integer number (1676678710).
Almost surely, 212980738352 is an apocalyptic number.
12980738352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12980738352 is an abundant number, since it is smaller than the sum of its proper divisors (20552835848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12980738352 is a wasteful number, since it uses less digits than its factorization.
12980738352 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 270432060 (or 270432054 counting only the distinct ones).
The product of its (nonzero) digits is 725760, while the sum is 48.
The spelling of 12980738352 in words is "twelve billion, nine hundred eighty million, seven hundred thirty-eight thousand, three hundred fifty-two".
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