Base | Representation |
---|---|
bin | 10010101010111110… |
… | …10101001100010101 |
3 | 221212121022200200021 |
4 | 21111133111030111 |
5 | 131012144224341 |
6 | 4334405345141 |
7 | 503260250413 |
oct | 112537251425 |
9 | 27777280607 |
10 | 10024211221 |
11 | 4284451292 |
12 | 1b391081b1 |
13 | c39a1663b |
14 | 6b14662b3 |
15 | 3da0919d1 |
hex | 2557d5315 |
10024211221 has 2 divisors, whose sum is σ = 10024211222. Its totient is φ = 10024211220.
The previous prime is 10024211111. The next prime is 10024211261. The reversal of 10024211221 is 12211242001.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 9578536900 + 445674321 = 97870^2 + 21111^2 .
It is a cyclic number.
It is not a de Polignac number, because 10024211221 - 223 = 10015822613 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 10024211195 and 10024211204.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10024211261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5012105610 + 5012105611.
It is an arithmetic number, because the mean of its divisors is an integer number (5012105611).
Almost surely, 210024211221 is an apocalyptic number.
It is an amenable number.
10024211221 is a deficient number, since it is larger than the sum of its proper divisors (1).
10024211221 is an equidigital number, since it uses as much as digits as its factorization.
10024211221 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 64, while the sum is 16.
Adding to 10024211221 its reverse (12211242001), we get a palindrome (22235453222).
The spelling of 10024211221 in words is "ten billion, twenty-four million, two hundred eleven thousand, two hundred twenty-one".
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