| Base | Representation |
|---|---|
| bin | 10111110101111… |
| … | …00111010010100 |
| 3 | 111221100012211200 |
| 4 | 23322330322110 |
| 5 | 402200100340 |
| 6 | 31502432500 |
| 7 | 4645666524 |
| oct | 1372747224 |
| 9 | 457305750 |
| 10 | 200003220 |
| 11 | a299541a |
| 12 | 56b92730 |
| 13 | 32588901 |
| 14 | 1c7c3684 |
| 15 | 1285a330 |
| hex | bebce94 |
200003220 has 72 divisors (see below), whose sum is σ = 612107496. Its totient is φ = 52856832.
The previous prime is 200003213. The next prime is 200003231. The reversal of 200003220 is 22300002.
It can be written as a sum of positive squares in 4 ways, for example, as 7056 + 199996164 = 84^2 + 14142^2 .
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15424 + ... + 25256.
It is an arithmetic number, because the mean of its divisors is an integer number (8501493).
Almost surely, 2200003220 is an apocalyptic number.
200003220 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 200003220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306053748).
200003220 is an abundant number, since it is smaller than the sum of its proper divisors (412104276).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
200003220 is a wasteful number, since it uses less digits than its factorization.
200003220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9961 (or 9956 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 9.
The square root of 200003220 is about 14142.2494674645. The cubic root of 200003220 is about 584.8066860714.
Adding to 200003220 its reverse (22300002), we get a palindrome (222303222).
It can be divided in two parts, 20000 and 3220, that added together give a triangular number (23220 = T215).
The spelling of 200003220 in words is "two hundred million, three thousand, two hundred twenty".
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