Base | Representation |
---|---|
bin | 101101110110… |
… | …100111101000 |
3 | 211121200121121 |
4 | 231312213220 |
5 | 11034121300 |
6 | 1105345024 |
7 | 204112213 |
oct | 55664750 |
9 | 24550547 |
10 | 12020200 |
11 | 686aa55 |
12 | 4038174 |
13 | 264b25a |
14 | 184c77a |
15 | 10c681a |
hex | b769e8 |
12020200 has 24 divisors (see below), whose sum is σ = 27947430. Its totient is φ = 4808000.
The previous prime is 12020161. The next prime is 12020209. The reversal of 12020200 is 202021.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 8844676 + 3175524 = 2974^2 + 1782^2 .
It is not an unprimeable number, because it can be changed into a prime (12020209) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29851 + ... + 30250.
Almost surely, 212020200 is an apocalyptic number.
12020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12020200 is an abundant number, since it is smaller than the sum of its proper divisors (15927230).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12020200 is a wasteful number, since it uses less digits than its factorization.
12020200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60117 (or 60108 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 12020200 is about 3467.0160080392. The cubic root of 12020200 is about 229.0712388724.
Adding to 12020200 its reverse (202021), we get a palindrome (12222221).
The spelling of 12020200 in words is "twelve million, twenty thousand, two hundred".
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