Base | Representation |
---|---|
bin | 10111111101111011… |
… | …00000111100001001 |
3 | 1020012202102100211001 |
4 | 23332331200330021 |
5 | 202323033120121 |
6 | 5524454335001 |
7 | 633603501004 |
oct | 137675407411 |
9 | 36182370731 |
10 | 12867473161 |
11 | 5503398044 |
12 | 25b135a461 |
13 | 12a0ab005a |
14 | 8a0d0c53b |
15 | 5049c4991 |
hex | 2fef60f09 |
12867473161 has 2 divisors, whose sum is σ = 12867473162. Its totient is φ = 12867473160.
The previous prime is 12867473141. The next prime is 12867473167. The reversal of 12867473161 is 16137476821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12753410761 + 114062400 = 112931^2 + 10680^2 .
It is a cyclic number.
It is not a de Polignac number, because 12867473161 - 27 = 12867473033 is a prime.
It is not a weakly prime, because it can be changed into another prime (12867473167) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6433736580 + 6433736581.
It is an arithmetic number, because the mean of its divisors is an integer number (6433736581).
Almost surely, 212867473161 is an apocalyptic number.
It is an amenable number.
12867473161 is a deficient number, since it is larger than the sum of its proper divisors (1).
12867473161 is an equidigital number, since it uses as much as digits as its factorization.
12867473161 is an evil number, because the sum of its binary digits is even.
The product of its digits is 338688, while the sum is 46.
The spelling of 12867473161 in words is "twelve billion, eight hundred sixty-seven million, four hundred seventy-three thousand, one hundred sixty-one".
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