Base | Representation |
---|---|
bin | 1000001110100100… |
… | …1001000010011100 |
3 | 12200220212111221011 |
4 | 2003221021002130 |
5 | 14010400201340 |
6 | 1003053545004 |
7 | 105505535461 |
oct | 20351110234 |
9 | 5626774834 |
10 | 2208600220 |
11 | a33774042 |
12 | 5177a5164 |
13 | 292753048 |
14 | 16d479668 |
15 | cdd6a0ea |
hex | 83a4909c |
2208600220 has 48 divisors (see below), whose sum is σ = 4922406720. Its totient is φ = 829522944.
The previous prime is 2208600209. The next prime is 2208600227. The reversal of 2208600220 is 220068022.
It is a junction number, because it is equal to n+sod(n) for n = 2208600191 and 2208600200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2208600227) 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, 141862 + ... + 156658.
It is an arithmetic number, because the mean of its divisors is an integer number (102550140).
Almost surely, 22208600220 is an apocalyptic number.
2208600220 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 2208600220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461203360).
2208600220 is an abundant number, since it is smaller than the sum of its proper divisors (2713806500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2208600220 is a wasteful number, since it uses less digits than its factorization.
2208600220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15262 (or 15260 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 22.
The square root of 2208600220 is about 46995.7468288355. The cubic root of 2208600220 is about 1302.2839966836.
Adding to 2208600220 its reverse (220068022), we get a palindrome (2428668242).
The spelling of 2208600220 in words is "two billion, two hundred eight million, six hundred thousand, two hundred twenty".
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