Base | Representation |
---|---|
bin | 11010001111011… |
… | …01000001011110 |
3 | 120100012102022020 |
4 | 31013231001132 |
5 | 422322420410 |
6 | 33502001010 |
7 | 5312005455 |
oct | 1507550136 |
9 | 510172266 |
10 | 220123230 |
11 | 103287928 |
12 | 61876166 |
13 | 367b1842 |
14 | 2133db9c |
15 | 144d1a70 |
hex | d1ed05e |
220123230 has 64 divisors (see below), whose sum is σ = 539827200. Its totient is φ = 57432960.
The previous prime is 220123229. The next prime is 220123247. The reversal of 220123230 is 32321022.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310116 + ... + 310824.
It is an arithmetic number, because the mean of its divisors is an integer number (8434800).
Almost surely, 2220123230 is an apocalyptic number.
220123230 is an abundant number, since it is smaller than the sum of its proper divisors (319703970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220123230 is a wasteful number, since it uses less digits than its factorization.
220123230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 929.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 220123230 is about 14836.5504750936. The cubic root of 220123230 is about 603.7937672149.
Adding to 220123230 its reverse (32321022), we get a palindrome (252444252).
The spelling of 220123230 in words is "two hundred twenty million, one hundred twenty-three thousand, two hundred thirty".
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