Base | Representation |
---|---|
bin | 110000110101… |
… | …100010100100 |
3 | 220002102100000 |
4 | 300311202210 |
5 | 11234132322 |
6 | 1134221300 |
7 | 213550143 |
oct | 60654244 |
9 | 26072300 |
10 | 12802212 |
11 | 7254545 |
12 | 4354830 |
13 | 2863197 |
14 | 19b375a |
15 | 11cd3ac |
hex | c358a4 |
12802212 has 36 divisors (see below), whose sum is σ = 33562256. Its totient is φ = 4267080.
The previous prime is 12802201. The next prime is 12802213. The reversal of 12802212 is 21220821.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (12802213) 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, 5614 + ... + 7557.
Almost surely, 212802212 is an apocalyptic number.
12802212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12802212 is an abundant number, since it is smaller than the sum of its proper divisors (20760044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12802212 is a wasteful number, since it uses less digits than its factorization.
12802212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13190 (or 13176 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
The square root of 12802212 is about 3578.0178870430. The cubic root of 12802212 is about 233.9348931293.
Subtracting from 12802212 its product of nonzero digits (128), we obtain a square (12802084 = 35782).
The spelling of 12802212 in words is "twelve million, eight hundred two thousand, two hundred twelve".
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