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420303352 = 2377505417
BaseRepresentation
bin11001000011010…
…101000111111000
31002021212121210211
4121003111013320
51330044201402
6105412320504
713262343130
oct3103250770
91067777724
10420303352
111a6283147
12b8913134
13690ccb11
143db6bac0
1526d744d7
hex190d51f8

420303352 has 16 divisors (see below), whose sum is σ = 900650160. Its totient is φ = 180129984.

The previous prime is 420303347. The next prime is 420303353. The reversal of 420303352 is 253303024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420303353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3752653 + ... + 3752764.

It is an arithmetic number, because the mean of its divisors is an integer number (56290635).

Almost surely, 2420303352 is an apocalyptic number.

It is an amenable number.

420303352 is an abundant number, since it is smaller than the sum of its proper divisors (480346808).

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

420303352 is a wasteful number, since it uses less digits than its factorization.

420303352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505430 (or 7505426 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 420303352 is about 20501.3012269953. The cubic root of 420303352 is about 749.0674940945.

Adding to 420303352 its reverse (253303024), we get a palindrome (673606376).

The spelling of 420303352 in words is "four hundred twenty million, three hundred three thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 7505417 15010834 30021668 52537919 60043336 105075838 210151676 420303352