Base | Representation |
---|---|
bin | 101010000100100011010… |
… | …110110100000011011101 |
3 | 101020101110011022201100221 |
4 | 222010203112310003131 |
5 | 334331441140020044 |
6 | 10052053354521341 |
7 | 415606210000165 |
oct | 52044326640335 |
9 | 11211404281327 |
10 | 2891106173149 |
11 | a15125077957 |
12 | 3a8395736251 |
13 | 17c82656572c |
14 | 9dd049bb5a5 |
15 | 5030e801484 |
hex | 2a1235b40dd |
2891106173149 has 2 divisors, whose sum is σ = 2891106173150. Its totient is φ = 2891106173148.
The previous prime is 2891106173141. The next prime is 2891106173183. The reversal of 2891106173149 is 9413716011982.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2441109384025 + 449996789124 = 1562405^2 + 670818^2 .
It is a cyclic number.
It is not a de Polignac number, because 2891106173149 - 23 = 2891106173141 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2891106173096 and 2891106173105.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2891106173141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445553086574 + 1445553086575.
It is an arithmetic number, because the mean of its divisors is an integer number (1445553086575).
Almost surely, 22891106173149 is an apocalyptic number.
It is an amenable number.
2891106173149 is a deficient number, since it is larger than the sum of its proper divisors (1).
2891106173149 is an equidigital number, since it uses as much as digits as its factorization.
2891106173149 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 653184, while the sum is 52.
The spelling of 2891106173149 in words is "two trillion, eight hundred ninety-one billion, one hundred six million, one hundred seventy-three thousand, one hundred forty-nine".
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