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420244302 = 23239329269
BaseRepresentation
bin11001000011000…
…110101101001110
31002021202121210210
4121003012231032
51330040304202
6105411143250
713262006022
oct3103065516
91067677723
10420244302
111a6242845
12b88a4b26
13690abc8a
143db54382
1526d61c6c
hex190c6b4e

420244302 has 16 divisors (see below), whose sum is σ = 840868560. Its totient is φ = 140018112.

The previous prime is 420244273. The next prime is 420244303. The reversal of 420244302 is 203442024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420244303) 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, 277 + ... + 28992.

It is an arithmetic number, because the mean of its divisors is an integer number (52554285).

Almost surely, 2420244302 is an apocalyptic number.

420244302 is an abundant number, since it is smaller than the sum of its proper divisors (420624258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420244302 is a wasteful number, since it uses less digits than its factorization.

420244302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31667.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 420244302 is about 20499.8610239192. The cubic root of 420244302 is about 749.0324126810.

Adding to 420244302 its reverse (203442024), we get a palindrome (623686326).

The spelling of 420244302 in words is "four hundred twenty million, two hundred forty-four thousand, three hundred two".

Divisors: 1 2 3 6 2393 4786 7179 14358 29269 58538 87807 175614 70040717 140081434 210122151 420244302