Base | Representation |
---|---|
bin | 111110101111000… |
… | …1001100011111111 |
3 | 12102201000220021001 |
4 | 1331132021203333 |
5 | 13302343233422 |
6 | 544514351131 |
7 | 103110451003 |
oct | 17536114377 |
9 | 5381026231 |
10 | 2105055487 |
11 | 990281387 |
12 | 4a8b8b4a7 |
13 | 27716ac82 |
14 | 15d804703 |
15 | c4c15227 |
hex | 7d7898ff |
2105055487 has 2 divisors, whose sum is σ = 2105055488. Its totient is φ = 2105055486.
The previous prime is 2105055457. The next prime is 2105055493. The reversal of 2105055487 is 7845505012.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2105055487 - 211 = 2105053439 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2105055457) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052527743 + 1052527744.
It is an arithmetic number, because the mean of its divisors is an integer number (1052527744).
Almost surely, 22105055487 is an apocalyptic number.
2105055487 is a deficient number, since it is larger than the sum of its proper divisors (1).
2105055487 is an equidigital number, since it uses as much as digits as its factorization.
2105055487 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 56000, while the sum is 37.
The square root of 2105055487 is about 45880.8836771917. The cubic root of 2105055487 is about 1281.6059527942.
The spelling of 2105055487 in words is "two billion, one hundred five million, fifty-five thousand, four hundred eighty-seven".
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