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420130663 is a prime number
BaseRepresentation
bin11001000010101…
…010111101100111
31002021112211220221
4121002222331213
51330023140123
6105404505211
713261023511
oct3102527547
91067484827
10420130663
111a6175427
12b884b207
136906c334
143db24bb1
1526d3d25d
hex190aaf67

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".