Base | Representation |
---|---|
bin | 11000001101011101… |
… | …01001110110001011 |
3 | 1020112211122102001122 |
4 | 30012232221312023 |
5 | 203104413421321 |
6 | 5545431505455 |
7 | 640045302452 |
oct | 140656516613 |
9 | 36484572048 |
10 | 12997795211 |
11 | 556aa09a15 |
12 | 2628b2828b |
13 | 12c1aac2ab |
14 | 8b4353b99 |
15 | 5111688ab |
hex | 306ba9d8b |
12997795211 has 2 divisors, whose sum is σ = 12997795212. Its totient is φ = 12997795210.
The previous prime is 12997795169. The next prime is 12997795243. The reversal of 12997795211 is 11259779921.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12997795211 - 226 = 12930686347 is a prime.
It is not a weakly prime, because it can be changed into another prime (12997795511) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498897605 + 6498897606.
It is an arithmetic number, because the mean of its divisors is an integer number (6498897606).
Almost surely, 212997795211 is an apocalyptic number.
12997795211 is a deficient number, since it is larger than the sum of its proper divisors (1).
12997795211 is an equidigital number, since it uses as much as digits as its factorization.
12997795211 is an evil number, because the sum of its binary digits is even.
The product of its digits is 714420, while the sum is 53.
The spelling of 12997795211 in words is "twelve billion, nine hundred ninety-seven million, seven hundred ninety-five thousand, two hundred eleven".
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