Base | Representation |
---|---|
bin | 1000010001010110… |
… | …0000011010010011 |
3 | 12201201202101101112 |
4 | 2010111200122103 |
5 | 14021334332131 |
6 | 1004151123535 |
7 | 106006434416 |
oct | 20425403223 |
9 | 5651671345 |
10 | 2220230291 |
11 | a3a297974 |
12 | 51b6735ab |
13 | 294c95846 |
14 | 170c25b7d |
15 | cedb602b |
hex | 84560693 |
2220230291 has 2 divisors, whose sum is σ = 2220230292. Its totient is φ = 2220230290.
The previous prime is 2220230231. The next prime is 2220230293. The reversal of 2220230291 is 1920320222.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2220230291 - 230 = 1146488467 is a prime.
It is a super-3 number, since 3×22202302913 (a number of 29 digits) contains 333 as substring.
Together with 2220230293, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2220230293) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110115145 + 1110115146.
It is an arithmetic number, because the mean of its divisors is an integer number (1110115146).
Almost surely, 22220230291 is an apocalyptic number.
2220230291 is a deficient number, since it is larger than the sum of its proper divisors (1).
2220230291 is an equidigital number, since it uses as much as digits as its factorization.
2220230291 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 23.
The square root of 2220230291 is about 47119.3197213203. The cubic root of 2220230291 is about 1304.5658564770.
The spelling of 2220230291 in words is "two billion, two hundred twenty million, two hundred thirty thousand, two hundred ninety-one".
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