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420292031 is a prime number
BaseRepresentation
bin11001000011010…
…010010110111111
31002021212001021112
4121003102112333
51330043321111
6105412152235
713262265125
oct3103222677
91067761245
10420292031
111a6275695
12b890867b
13690c7913
143db67915
1526d70e8b
hex190d25bf

420292031 has 2 divisors, whose sum is σ = 420292032. Its totient is φ = 420292030.

The previous prime is 420292021. The next prime is 420292039. The reversal of 420292031 is 130292024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420292031 - 222 = 416097727 is a prime.

It is a super-2 number, since 2×4202920312 = 353290782644209922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 420291988 and 420292006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420292039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210146015 + 210146016.

It is an arithmetic number, because the mean of its divisors is an integer number (210146016).

Almost surely, 2420292031 is an apocalyptic number.

420292031 is a deficient number, since it is larger than the sum of its proper divisors (1).

420292031 is an equidigital number, since it uses as much as digits as its factorization.

420292031 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 420292031 is about 20501.0251207104. The cubic root of 420292031 is about 749.0607685797.

The spelling of 420292031 in words is "four hundred twenty million, two hundred ninety-two thousand, thirty-one".