Base | Representation |
---|---|
bin | 101101110010… |
… | …011110000000 |
3 | 211120211021222 |
4 | 231302132000 |
5 | 11033100300 |
6 | 1105134212 |
7 | 204011516 |
oct | 55623600 |
9 | 24524258 |
10 | 12003200 |
11 | 6859200 |
12 | 402a368 |
13 | 26435b1 |
14 | 18464b6 |
15 | 10c1785 |
hex | b72780 |
12003200 has 144 divisors (see below), whose sum is σ = 33643680. Its totient is φ = 4224000.
The previous prime is 12003197. The next prime is 12003209. The reversal of 12003200 is 230021.
It is a Harshad number since it is a multiple of its sum of digits (8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12003209) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 387185 + ... + 387215.
Almost surely, 212003200 is an apocalyptic number.
12003200 is a gapful number since it is divisible by the number (10) 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 12003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16821840).
12003200 is an abundant number, since it is smaller than the sum of its proper divisors (21640480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12003200 is a wasteful number, since it uses less digits than its factorization.
12003200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77 (or 49 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 8.
The square root of 12003200 is about 3464.5634645652. The cubic root of 12003200 is about 228.9631971774.
Adding to 12003200 its reverse (230021), we get a palindrome (12233221).
The spelling of 12003200 in words is "twelve million, three thousand, two hundred".
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