Base | Representation |
---|---|
bin | 100000000111111010111… |
… | …110001000001101011101 |
3 | 21211001000110220212212102 |
4 | 200013322332020031131 |
5 | 242132004334012110 |
6 | 4410042535414445 |
7 | 315326423212256 |
oct | 40077276101535 |
9 | 7731013825772 |
10 | 2207528813405 |
11 | 781231512a23 |
12 | 2b7a00b24425 |
13 | 1302275bc406 |
14 | 78bb8823b2d |
15 | 3c6523c65a5 |
hex | 201faf8835d |
2207528813405 has 6 divisors (see below), whose sum is σ = 2649038562846. Its totient is φ = 1766020392888.
The previous prime is 2207528813333. The next prime is 2207528813443. The reversal of 2207528813405 is 5043188257022.
2207528813405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 1766023050724 + 441505762681 = 1328918^2 + 664459^2 .
It is not a de Polignac number, because 2207528813405 - 212 = 2207528809309 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2207528813405.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2990066 + ... + 3654524.
It is an arithmetic number, because the mean of its divisors is an integer number (441506427141).
Almost surely, 22207528813405 is an apocalyptic number.
It is an amenable number.
2207528813405 is a deficient number, since it is larger than the sum of its proper divisors (441509749441).
2207528813405 is an frugal number, since it uses more digits than its factorization.
2207528813405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1328923 (or 664464 counting only the distinct ones).
The product of its (nonzero) digits is 1075200, while the sum is 47.
The spelling of 2207528813405 in words is "two trillion, two hundred seven billion, five hundred twenty-eight million, eight hundred thirteen thousand, four hundred five".
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