Base | Representation |
---|---|
bin | 11010001110100… |
… | …01011011101100 |
3 | 120022222200021200 |
4 | 31013101123230 |
5 | 422310311340 |
6 | 33455325500 |
7 | 5311025133 |
oct | 1507213354 |
9 | 508880250 |
10 | 220010220 |
11 | 10320aa31 |
12 | 61820890 |
13 | 36772281 |
14 | 2131091a |
15 | 144ad330 |
hex | d1d16ec |
220010220 has 36 divisors (see below), whose sum is σ = 667364880. Its totient is φ = 58669344.
The previous prime is 220010213. The next prime is 220010227. The reversal of 220010220 is 22010022.
It is an interprime number because it is at equal distance from previous prime (220010213) and next prime (220010227).
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (220010227) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610960 + ... + 611319.
Almost surely, 2220010220 is an apocalyptic number.
220010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
220010220 is an abundant number, since it is smaller than the sum of its proper divisors (447354660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220010220 is a wasteful number, since it uses less digits than its factorization.
220010220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1222294 (or 1222289 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
The square root of 220010220 is about 14832.7414863201. The cubic root of 220010220 is about 603.6904214450.
Adding to 220010220 its reverse (22010022), we get a palindrome (242020242).
The spelling of 220010220 in words is "two hundred twenty million, ten thousand, two hundred twenty".
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