Search a number
-
+
428027223 = 31314277691
BaseRepresentation
bin11001100000110…
…010110101010111
31002211102000222010
4121200302311113
51334033332343
6110250035303
713415112531
oct3140626527
91084360863
10428027223
111aa679208
12bb418b33
136a8a5660
1440bbc851
152789cd33
hex19832d57

428027223 has 16 divisors (see below), whose sum is σ = 615113856. Its totient is φ = 263182560.

The previous prime is 428027209. The next prime is 428027227. The reversal of 428027223 is 322720824.

It is not a de Polignac number, because 428027223 - 210 = 428026199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428027227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51808 + ... + 59498.

It is an arithmetic number, because the mean of its divisors is an integer number (38444616).

Almost surely, 2428027223 is an apocalyptic number.

428027223 is a deficient number, since it is larger than the sum of its proper divisors (187086633).

428027223 is a wasteful number, since it uses less digits than its factorization.

428027223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 428027223 is about 20688.8187918015. The cubic root of 428027223 is about 753.6281818705.

The spelling of 428027223 in words is "four hundred twenty-eight million, twenty-seven thousand, two hundred twenty-three".

Divisors: 1 3 13 39 1427 4281 7691 18551 23073 55653 99983 299949 10975057 32925171 142675741 428027223