Base | Representation |
---|---|
bin | 1011101010111000000000… |
… | …0011111111000111000010 |
3 | 1200102122121111022220110101 |
4 | 2322232000003333013002 |
5 | 3140211312223413410 |
6 | 43142325034153014 |
7 | 2463011330051326 |
oct | 272560003770702 |
9 | 50378544286411 |
10 | 12831215841730 |
11 | 40a7762919500 |
12 | 153293828276a |
13 | 720c948b1310 |
14 | 325069a43986 |
15 | 173b81955d3a |
hex | bab800ff1c2 |
12831215841730 has 192 divisors, whose sum is σ = 27483236099424. Its totient is φ = 4284393062400.
The previous prime is 12831215841677. The next prime is 12831215841737. The reversal of 12831215841730 is 3714851213821.
It can be written as a sum of positive squares in 16 ways, for example, as 7348832422129 + 5482383419601 = 2710873^2 + 2341449^2 .
It is not an unprimeable number, because it can be changed into a prime (12831215841737) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3804094324 + ... + 3804097696.
Almost surely, 212831215841730 is an apocalyptic number.
12831215841730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12831215841730 is an abundant number, since it is smaller than the sum of its proper divisors (14652020257694).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12831215841730 is a wasteful number, since it uses less digits than its factorization.
12831215841730 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4613 (or 4602 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 46.
The spelling of 12831215841730 in words is "twelve trillion, eight hundred thirty-one billion, two hundred fifteen million, eight hundred forty-one thousand, seven hundred thirty".
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