Base | Representation |
---|---|
bin | 1000010110100101… |
… | …1001100110010001 |
3 | 12210021010201000002 |
4 | 2011221121212101 |
5 | 14043002104411 |
6 | 1010254335345 |
7 | 106364401532 |
oct | 20551314621 |
9 | 5707121002 |
10 | 2242222481 |
11 | a50748a34 |
12 | 526aba555 |
13 | 2996c5985 |
14 | 173b0c689 |
15 | d1cac33b |
hex | 85a59991 |
2242222481 has 2 divisors, whose sum is σ = 2242222482. Its totient is φ = 2242222480.
The previous prime is 2242222441. The next prime is 2242222513. The reversal of 2242222481 is 1842222422.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1360429456 + 881793025 = 36884^2 + 29695^2 .
It is a cyclic number.
It is not a de Polignac number, because 2242222481 - 226 = 2175113617 is a prime.
It is a super-2 number, since 2×22422224812 = 10055123308603590722, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (2242222441) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121111240 + 1121111241.
It is an arithmetic number, because the mean of its divisors is an integer number (1121111241).
Almost surely, 22242222481 is an apocalyptic number.
It is an amenable number.
2242222481 is a deficient number, since it is larger than the sum of its proper divisors (1).
2242222481 is an equidigital number, since it uses as much as digits as its factorization.
2242222481 is an evil number, because the sum of its binary digits is even.
The product of its digits is 8192, while the sum is 29.
The square root of 2242222481 is about 47352.1116846968. Note that the first 3 decimals coincide. The cubic root of 2242222481 is about 1308.8591121532.
The spelling of 2242222481 in words is "two billion, two hundred forty-two million, two hundred twenty-two thousand, four hundred eighty-one".
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