Base | Representation |
---|---|
bin | 100100011010110… |
… | …1011110000001101 |
3 | 10011011110200022011 |
4 | 1020311223300031 |
5 | 10000320014042 |
6 | 321132221221 |
7 | 42166050445 |
oct | 11065536015 |
9 | 3134420264 |
10 | 1222032397 |
11 | 577895033 |
12 | 2a130a811 |
13 | 1662399c1 |
14 | b8427125 |
15 | 7243da17 |
hex | 48d6bc0d |
1222032397 has 2 divisors, whose sum is σ = 1222032398. Its totient is φ = 1222032396.
The previous prime is 1222032391. The next prime is 1222032407. The reversal of 1222032397 is 7932302221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1203118596 + 18913801 = 34686^2 + 4349^2 .
It is a cyclic number.
It is not a de Polignac number, because 1222032397 - 27 = 1222032269 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1222032391) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611016198 + 611016199.
It is an arithmetic number, because the mean of its divisors is an integer number (611016199).
Almost surely, 21222032397 is an apocalyptic number.
It is an amenable number.
1222032397 is a deficient number, since it is larger than the sum of its proper divisors (1).
1222032397 is an equidigital number, since it uses as much as digits as its factorization.
1222032397 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 9072, while the sum is 31.
The square root of 1222032397 is about 34957.5799648660. The cubic root of 1222032397 is about 1069.1227552312.
The spelling of 1222032397 in words is "one billion, two hundred twenty-two million, thirty-two thousand, three hundred ninety-seven".
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