Base | Representation |
---|---|
bin | 101000100101000… |
… | …111110111101000 |
3 | 1202110002020201222 |
4 | 220211013313220 |
5 | 2343242221300 |
6 | 151320201212 |
7 | 22604606354 |
oct | 5045076750 |
9 | 1673066658 |
10 | 680820200 |
11 | 31a33a325 |
12 | 170009208 |
13 | ab0853b8 |
14 | 665c4464 |
15 | 3eb84785 |
hex | 28947de8 |
680820200 has 48 divisors (see below), whose sum is σ = 1584809280. Its totient is φ = 272000960.
The previous prime is 680820191. The next prime is 680820209. The reversal of 680820200 is 2028086.
680820200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (680820191) and next prime (680820209).
It is a super-2 number, since 2×6808202002 = 927032289456080000, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 680820200.
It is not an unprimeable number, because it can be changed into a prime (680820209) 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, 231137 + ... + 234063.
It is an arithmetic number, because the mean of its divisors is an integer number (33016860).
Almost surely, 2680820200 is an apocalyptic number.
It is an amenable number.
680820200 is an abundant number, since it is smaller than the sum of its proper divisors (903989080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
680820200 is a wasteful number, since it uses less digits than its factorization.
680820200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4106 (or 4097 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 26.
The square root of 680820200 is about 26092.5314984959. The cubic root of 680820200 is about 879.7193492092.
Adding to 680820200 its reverse (2028086), we get a palindrome (682848286).
The spelling of 680820200 in words is "six hundred eighty million, eight hundred twenty thousand, two hundred".
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