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420434201 = 11277137983
BaseRepresentation
bin11001000011110…
…101000100011001
31002022010021022002
4121003311010121
51330112343301
6105415210345
713263426455
oct3103650431
91068107262
10420434201
111a6362490
12b89769b5
1369147545
143dba3665
1526d9d16b
hex190f5119

420434201 has 8 divisors (see below), whose sum is σ = 460314624. Its totient is φ = 380830320.

The previous prime is 420434173. The next prime is 420434207. The reversal of 420434201 is 102434024.

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 420434201 - 214 = 420417817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420434207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65945 + ... + 72038.

It is an arithmetic number, because the mean of its divisors is an integer number (57539328).

Almost surely, 2420434201 is an apocalyptic number.

It is an amenable number.

420434201 is a deficient number, since it is larger than the sum of its proper divisors (39880423).

420434201 is a wasteful number, since it uses less digits than its factorization.

420434201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138271.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420434201 is about 20504.4922151220. The cubic root of 420434201 is about 749.1452193554.

Adding to 420434201 its reverse (102434024), we get a palindrome (522868225).

The spelling of 420434201 in words is "four hundred twenty million, four hundred thirty-four thousand, two hundred one".

Divisors: 1 11 277 3047 137983 1517813 38221291 420434201