Base | Representation |
---|---|
bin | 1011011100111101101101 |
3 | 12122112021101 |
4 | 23130331231 |
5 | 1232032341 |
6 | 144203101 |
7 | 34342555 |
oct | 13347555 |
9 | 5575241 |
10 | 3002221 |
11 | 1770682 |
12 | 1009491 |
13 | 811681 |
14 | 582165 |
15 | 3e4831 |
hex | 2dcf6d |
3002221 has 2 divisors, whose sum is σ = 3002222. Its totient is φ = 3002220.
The previous prime is 3002191. The next prime is 3002231. The reversal of 3002221 is 1222003.
It is an a-pointer prime, because the next prime (3002231) can be obtained adding 3002221 to its sum of digits (10).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1974025 + 1028196 = 1405^2 + 1014^2 .
It is an emirp because it is prime and its reverse (1222003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 3002221 - 25 = 3002189 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 3002198 and 3002207.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3002231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1501110 + 1501111.
It is an arithmetic number, because the mean of its divisors is an integer number (1501111).
Almost surely, 23002221 is an apocalyptic number.
It is an amenable number.
3002221 is a deficient number, since it is larger than the sum of its proper divisors (1).
3002221 is an equidigital number, since it uses as much as digits as its factorization.
3002221 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 3002221 is about 1732.6918364210. The cubic root of 3002221 is about 144.2605397656.
Adding to 3002221 its reverse (1222003), we get a palindrome (4224224).
It can be divided in two parts, 3002 and 221, that added together give a palindrome (3223).
The spelling of 3002221 in words is "three million, two thousand, two hundred twenty-one".
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