Base | Representation |
---|---|
bin | 100111001000… |
… | …111011111101 |
3 | 201022021101012 |
4 | 213020323331 |
5 | 10111311341 |
6 | 1003525005 |
7 | 153132116 |
oct | 47107375 |
9 | 21267335 |
10 | 10260221 |
11 | 5878724 |
12 | 3529765 |
13 | 218314a |
14 | 151120d |
15 | d7a0eb |
hex | 9c8efd |
10260221 has 2 divisors, whose sum is σ = 10260222. Its totient is φ = 10260220.
The previous prime is 10260199. The next prime is 10260227. The reversal of 10260221 is 12206201.
10260221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 7236100 + 3024121 = 2690^2 + 1739^2 .
It is a cyclic number.
It is not a de Polignac number, because 10260221 - 26 = 10260157 is a prime.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 10260196 and 10260205.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10260227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130110 + 5130111.
It is an arithmetic number, because the mean of its divisors is an integer number (5130111).
Almost surely, 210260221 is an apocalyptic number.
It is an amenable number.
10260221 is a deficient number, since it is larger than the sum of its proper divisors (1).
10260221 is an equidigital number, since it uses as much as digits as its factorization.
10260221 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 10260221 is about 3203.1579730010. The cubic root of 10260221 is about 217.2962534651.
Adding to 10260221 its reverse (12206201), we get a palindrome (22466422).
The spelling of 10260221 in words is "ten million, two hundred sixty thousand, two hundred twenty-one".
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