Base | Representation |
---|---|
bin | 1110100100011… |
… | …01001101011101 |
3 | 22111222002000022 |
4 | 13102031031131 |
5 | 222241310323 |
6 | 20043241525 |
7 | 3012536513 |
oct | 722151535 |
9 | 274862008 |
10 | 122213213 |
11 | 62a93661 |
12 | 34b192a5 |
13 | 1c420415 |
14 | 123344b3 |
15 | aae14c8 |
hex | 748d35d |
122213213 has 2 divisors, whose sum is σ = 122213214. Its totient is φ = 122213212.
The previous prime is 122213173. The next prime is 122213261. The reversal of 122213213 is 312312221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 121837444 + 375769 = 11038^2 + 613^2 .
It is a cyclic number.
It is not a de Polignac number, because 122213213 - 28 = 122212957 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 122213191 and 122213200.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122213713) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106606 + 61106607.
It is an arithmetic number, because the mean of its divisors is an integer number (61106607).
Almost surely, 2122213213 is an apocalyptic number.
It is an amenable number.
122213213 is a deficient number, since it is larger than the sum of its proper divisors (1).
122213213 is an equidigital number, since it uses as much as digits as its factorization.
122213213 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 144, while the sum is 17.
The square root of 122213213 is about 11055.0085029366. The cubic root of 122213213 is about 496.2563237334.
Adding to 122213213 its reverse (312312221), we get a palindrome (434525434).
The spelling of 122213213 in words is "one hundred twenty-two million, two hundred thirteen thousand, two hundred thirteen".
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