Search a number
-
+
420338215 = 5117642513
BaseRepresentation
bin11001000011011…
…101101000100111
31002021221101122001
4121003131220213
51330101310330
6105413150131
713262546563
oct3103355047
91067841561
10420338215
111a62a7360
12b892b347
136911294b
143db7a6a3
1526d7e9ca
hex190dda27

420338215 has 8 divisors (see below), whose sum is σ = 550261008. Its totient is φ = 305700480.

The previous prime is 420338183. The next prime is 420338221. The reversal of 420338215 is 512833024.

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

It is not a de Polignac number, because 420338215 - 25 = 420338183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3821202 + ... + 3821311.

It is an arithmetic number, because the mean of its divisors is an integer number (68782626).

Almost surely, 2420338215 is an apocalyptic number.

420338215 is a deficient number, since it is larger than the sum of its proper divisors (129922793).

420338215 is a wasteful number, since it uses less digits than its factorization.

420338215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642529.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 420338215 is about 20502.1514724675. The cubic root of 420338215 is about 749.0882045472.

The spelling of 420338215 in words is "four hundred twenty million, three hundred thirty-eight thousand, two hundred fifteen".

Divisors: 1 5 11 55 7642513 38212565 84067643 420338215