Base | Representation |
---|---|
bin | 1011110100101000001001… |
… | …1000011010010010110011 |
3 | 1201000200001211100112001112 |
4 | 2331022002120122102303 |
5 | 3200432424132144211 |
6 | 43351314110223535 |
7 | 2511062231663645 |
oct | 275120230322263 |
9 | 51020054315045 |
10 | 12998758474931 |
11 | 4161819311619 |
12 | 155b2b5ab4bab |
13 | 733a156b51b8 |
14 | 32d2011a6895 |
15 | 1781da69788b |
hex | bd28261a4b3 |
12998758474931 has 2 divisors, whose sum is σ = 12998758474932. Its totient is φ = 12998758474930.
The previous prime is 12998758474901. The next prime is 12998758474943. The reversal of 12998758474931 is 13947485789921.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12998758474931 - 218 = 12998758212787 is a prime.
It is a super-2 number, since 2×129987584749312 (a number of 27 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12998758474901) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6499379237465 + 6499379237466.
It is an arithmetic number, because the mean of its divisors is an integer number (6499379237466).
Almost surely, 212998758474931 is an apocalyptic number.
12998758474931 is a deficient number, since it is larger than the sum of its proper divisors (1).
12998758474931 is an equidigital number, since it uses as much as digits as its factorization.
12998758474931 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1097349120, while the sum is 77.
The spelling of 12998758474931 in words is "twelve trillion, nine hundred ninety-eight billion, seven hundred fifty-eight million, four hundred seventy-four thousand, nine hundred thirty-one".
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