Base | Representation |
---|---|
bin | 101000100110111000111… |
… | …011101011010111100101 |
3 | 100212202212021121021022022 |
4 | 220212320323223113211 |
5 | 331210004311130411 |
6 | 5533542120112525 |
7 | 405416044156142 |
oct | 50467073532745 |
9 | 10782767537268 |
10 | 2790536426981 |
11 | 986507078056 |
12 | 3909a9005745 |
13 | 1731b99c0aa4 |
14 | 990c400b3c9 |
15 | 4c8c5572edb |
hex | 289b8eeb5e5 |
2790536426981 has 16 divisors (see below), whose sum is σ = 2892358904064. Its totient is φ = 2691116504064.
The previous prime is 2790536426971. The next prime is 2790536427023. The reversal of 2790536426981 is 1896246350972.
It is a cyclic number.
It is not a de Polignac number, because 2790536426981 - 230 = 2789462685157 is a prime.
It is a super-2 number, since 2×27905364269812 (a number of 26 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2790536426971) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786301 + ... + 2961746.
It is an arithmetic number, because the mean of its divisors is an integer number (180772431504).
It is a 1-persistent number, because it is pandigital, but 2⋅2790536426981 = 5581072853962 is not.
Almost surely, 22790536426981 is an apocalyptic number.
It is an amenable number.
2790536426981 is a deficient number, since it is larger than the sum of its proper divisors (101822477083).
2790536426981 is an equidigital number, since it uses as much as digits as its factorization.
2790536426981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4748300.
The product of its (nonzero) digits is 39191040, while the sum is 62.
The spelling of 2790536426981 in words is "two trillion, seven hundred ninety billion, five hundred thirty-six million, four hundred twenty-six thousand, nine hundred eighty-one".
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