Base | Representation |
---|---|
bin | 101110110110… |
… | …000011000111 |
3 | 212002220000002 |
4 | 232312003013 |
5 | 11120430012 |
6 | 1115111515 |
7 | 206243525 |
oct | 56660307 |
9 | 25086002 |
10 | 12280007 |
11 | 6a28173 |
12 | 414259b |
13 | 270c59c |
14 | 18b9315 |
15 | 11287c2 |
hex | bb60c7 |
12280007 has 2 divisors, whose sum is σ = 12280008. Its totient is φ = 12280006.
The previous prime is 12280003. The next prime is 12280013. The reversal of 12280007 is 70008221.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12280007 - 22 = 12280003 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12280003) 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 as a sum of consecutive naturals, namely, 6140003 + 6140004.
It is an arithmetic number, because the mean of its divisors is an integer number (6140004).
Almost surely, 212280007 is an apocalyptic number.
12280007 is a deficient number, since it is larger than the sum of its proper divisors (1).
12280007 is an equidigital number, since it uses as much as digits as its factorization.
12280007 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 224, while the sum is 20.
The square root of 12280007 is about 3504.2840923647. The cubic root of 12280007 is about 230.7098861049.
Adding to 12280007 its reverse (70008221), we get a palindrome (82288228).
The spelling of 12280007 in words is "twelve million, two hundred eighty thousand, seven".
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