Base | Representation |
---|---|
bin | 1000001100100001… |
… | …0101111010101100 |
3 | 12200022200200200201 |
4 | 2003020111322230 |
5 | 14001200032340 |
6 | 1002145403244 |
7 | 105342465433 |
oct | 20310257254 |
9 | 5608620621 |
10 | 2200002220 |
11 | a29931259 |
12 | 514939524 |
13 | 290a32680 |
14 | 16c27c11a |
15 | cd21c79a |
hex | 83215eac |
2200002220 has 48 divisors (see below), whose sum is σ = 4992543360. Its totient is φ = 809508096.
The previous prime is 2200002209. The next prime is 2200002223. The reversal of 2200002220 is 222000022.
It is a Harshad number since it is a multiple of its sum of digits (10).
2200002220 is a modest number, since divided by 2220 gives 2200 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 2200002197 and 2200002206.
It is not an unprimeable number, because it can be changed into a prime (2200002223) 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, 61741 + ... + 90619.
It is an arithmetic number, because the mean of its divisors is an integer number (104011320).
Almost surely, 22200002220 is an apocalyptic number.
2200002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2200002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2496271680).
2200002220 is an abundant number, since it is smaller than the sum of its proper divisors (2792541140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2200002220 is a wasteful number, since it uses less digits than its factorization.
2200002220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29194 (or 29192 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 10.
The square root of 2200002220 is about 46904.1812635078. The cubic root of 2200002220 is about 1300.5918843229.
Adding to 2200002220 its reverse (222000022), we get a palindrome (2422002242).
The spelling of 2200002220 in words is "two billion, two hundred million, two thousand, two hundred twenty".
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