Base | Representation |
---|---|
bin | 101010011100011… |
… | …1110110010011101 |
3 | 10200020221001012102 |
4 | 1110320332302131 |
5 | 10404100122024 |
6 | 353154014445 |
7 | 50202461531 |
oct | 12470766235 |
9 | 3606831172 |
10 | 1424223389 |
11 | 670a34126 |
12 | 338b77425 |
13 | 1990b0344 |
14 | d7219bc1 |
15 | 8507c1ae |
hex | 54e3ec9d |
1424223389 has 2 divisors, whose sum is σ = 1424223390. Its totient is φ = 1424223388.
The previous prime is 1424223377. The next prime is 1424223431. The reversal of 1424223389 is 9833224241.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 845820889 + 578402500 = 29083^2 + 24050^2 .
It is an emirp because it is prime and its reverse (9833224241) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1424223389 - 24 = 1424223373 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1424223349) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712111694 + 712111695.
It is an arithmetic number, because the mean of its divisors is an integer number (712111695).
Almost surely, 21424223389 is an apocalyptic number.
It is an amenable number.
1424223389 is a deficient number, since it is larger than the sum of its proper divisors (1).
1424223389 is an equidigital number, since it uses as much as digits as its factorization.
1424223389 is an evil number, because the sum of its binary digits is even.
The product of its digits is 82944, while the sum is 38.
The square root of 1424223389 is about 37738.8843104827. The cubic root of 1424223389 is about 1125.1040928210.
The spelling of 1424223389 in words is "one billion, four hundred twenty-four million, two hundred twenty-three thousand, three hundred eighty-nine".
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