Base | Representation |
---|---|
bin | 11001000010101… |
… | …010111101100111 |
3 | 1002021112211220221 |
4 | 121002222331213 |
5 | 1330023140123 |
6 | 105404505211 |
7 | 13261023511 |
oct | 3102527547 |
9 | 1067484827 |
10 | 420130663 |
11 | 1a6175427 |
12 | b884b207 |
13 | 6906c334 |
14 | 3db24bb1 |
15 | 26d3d25d |
hex | 190aaf67 |
420130663 has 2 divisors, whose sum is σ = 420130664. Its totient is φ = 420130662.
The previous prime is 420130661. The next prime is 420130703. The reversal of 420130663 is 366031024.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 420130663 - 21 = 420130661 is a prime.
Together with 420130661, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (420130661) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210065331 + 210065332.
It is an arithmetic number, because the mean of its divisors is an integer number (210065332).
Almost surely, 2420130663 is an apocalyptic number.
420130663 is a deficient number, since it is larger than the sum of its proper divisors (1).
420130663 is an equidigital number, since it uses as much as digits as its factorization.
420130663 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2592, while the sum is 25.
The square root of 420130663 is about 20497.0891348016. The cubic root of 420130663 is about 748.9648908708.
Adding to 420130663 its reverse (366031024), we get a palindrome (786161687).
The spelling of 420130663 in words is "four hundred twenty million, one hundred thirty thousand, six hundred sixty-three".
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