Base | Representation |
---|---|
bin | 101110100010… |
… | …110011110001 |
3 | 211221212220100 |
4 | 232202303301 |
5 | 11110414301 |
6 | 1113303013 |
7 | 205465005 |
oct | 56426361 |
9 | 24855810 |
10 | 12201201 |
11 | 6983a41 |
12 | 4104a69 |
13 | 26b275c |
14 | 1898705 |
15 | 1110286 |
hex | ba2cf1 |
12201201 has 12 divisors (see below), whose sum is σ = 18390528. Its totient is φ = 7780344.
The previous prime is 12201193. The next prime is 12201229. The reversal of 12201201 is 10210221.
It is not a de Polignac number, because 12201201 - 23 = 12201193 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (12201251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29265 + ... + 29678.
It is an arithmetic number, because the mean of its divisors is an integer number (1532544).
Almost surely, 212201201 is an apocalyptic number.
It is an amenable number.
12201201 is a deficient number, since it is larger than the sum of its proper divisors (6189327).
12201201 is a wasteful number, since it uses less digits than its factorization.
12201201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58972 (or 58969 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 12201201 is about 3493.0217577336. The cubic root of 12201201 is about 230.2153056334.
Adding to 12201201 its reverse (10210221), we get a palindrome (22411422).
The spelling of 12201201 in words is "twelve million, two hundred one thousand, two hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •