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420280223 = 11359106427
BaseRepresentation
bin11001000011001…
…111011110011111
31002021211110002012
4121003033132133
51330042431343
6105412021435
713262215526
oct3103173637
91067743065
10420280223
111a6267830
12b890187b
13690c242c
143db634bd
1526d6c718
hex190cf79f

420280223 has 8 divisors (see below), whose sum is σ = 459768960. Its totient is φ = 381005080.

The previous prime is 420280193. The next prime is 420280229. The reversal of 420280223 is 322082024.

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 420280223 - 210 = 420279199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420280229) 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, 49265 + ... + 57162.

It is an arithmetic number, because the mean of its divisors is an integer number (57471120).

Almost surely, 2420280223 is an apocalyptic number.

420280223 is a deficient number, since it is larger than the sum of its proper divisors (39488737).

420280223 is a wasteful number, since it uses less digits than its factorization.

420280223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106797.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 420280223 is about 20500.7371330887. The cubic root of 420280223 is about 749.0537536221.

The spelling of 420280223 in words is "four hundred twenty million, two hundred eighty thousand, two hundred twenty-three".

Divisors: 1 11 359 3949 106427 1170697 38207293 420280223