Base | Representation |
---|---|
bin | 1010101000100000… |
… | …0000110000100101 |
3 | 21100220201202100102 |
4 | 2222020000300211 |
5 | 21321140230411 |
6 | 1151115553445 |
7 | 130505346314 |
oct | 25210006045 |
9 | 7326652312 |
10 | 2854226981 |
11 | 1235155a81 |
12 | 677a5b885 |
13 | 366435608 |
14 | 1d10dc27b |
15 | 11a89bd3b |
hex | aa200c25 |
2854226981 has 2 divisors, whose sum is σ = 2854226982. Its totient is φ = 2854226980.
The previous prime is 2854226971. The next prime is 2854226983. The reversal of 2854226981 is 1896224582.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1484560900 + 1369666081 = 38530^2 + 37009^2 .
It is a cyclic number.
It is not a de Polignac number, because 2854226981 - 218 = 2853964837 is a prime.
It is a super-2 number, since 2×28542269812 = 16293223318136748722, which contains 22 as substring.
Together with 2854226983, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2854226983) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427113490 + 1427113491.
It is an arithmetic number, because the mean of its divisors is an integer number (1427113491).
Almost surely, 22854226981 is an apocalyptic number.
It is an amenable number.
2854226981 is a deficient number, since it is larger than the sum of its proper divisors (1).
2854226981 is an equidigital number, since it uses as much as digits as its factorization.
2854226981 is an evil number, because the sum of its binary digits is even.
The product of its digits is 552960, while the sum is 47.
The square root of 2854226981 is about 53424.9658961052. The cubic root of 2854226981 is about 1418.5005300112.
The spelling of 2854226981 in words is "two billion, eight hundred fifty-four million, two hundred twenty-six thousand, nine hundred eighty-one".
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