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420324031 = 1767369029
BaseRepresentation
bin11001000011011…
…010001010111111
31002021220200011201
4121003122022333
51330100332111
6105413000331
713262460331
oct3103321277
91067820151
10420324031
111a6297736
12b89230a7
136910935a
143db75451
1526d7a6c1
hex190da2bf

420324031 has 8 divisors (see below), whose sum is σ = 451692720. Its totient is φ = 389693568.

The previous prime is 420324013. The next prime is 420324043. The reversal of 420324031 is 130423024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420324031 - 211 = 420321983 is a prime.

It is a super-2 number, since 2×4203240312 = 353344582072177922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420324131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183376 + ... + 185653.

It is an arithmetic number, because the mean of its divisors is an integer number (56461590).

Almost surely, 2420324031 is an apocalyptic number.

420324031 is a deficient number, since it is larger than the sum of its proper divisors (31368689).

420324031 is a wasteful number, since it uses less digits than its factorization.

420324031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369113.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 420324031 is about 20501.8055546335. The cubic root of 420324031 is about 749.0797786446.

Adding to 420324031 its reverse (130423024), we get a palindrome (550747055).

The spelling of 420324031 in words is "four hundred twenty million, three hundred twenty-four thousand, thirty-one".

Divisors: 1 17 67 1139 369029 6273493 24724943 420324031