Base | Representation |
---|---|
bin | 1111010001101… |
… | …00111010111001 |
3 | 22221010100012021 |
4 | 13220310322321 |
5 | 230301034113 |
6 | 20414314441 |
7 | 3114124564 |
oct | 750647271 |
9 | 287110167 |
10 | 128143033 |
11 | 66373837 |
12 | 36ab8a21 |
13 | 207184a5 |
14 | 130394db |
15 | b3b348d |
hex | 7a34eb9 |
128143033 has 2 divisors, whose sum is σ = 128143034. Its totient is φ = 128143032.
The previous prime is 128143007. The next prime is 128143063. The reversal of 128143033 is 330341821.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 105513984 + 22629049 = 10272^2 + 4757^2 .
It is a cyclic number.
It is not a de Polignac number, because 128143033 - 225 = 94588601 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 128142989 and 128143007.
It is not a weakly prime, because it can be changed into another prime (128143063) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64071516 + 64071517.
It is an arithmetic number, because the mean of its divisors is an integer number (64071517).
Almost surely, 2128143033 is an apocalyptic number.
It is an amenable number.
128143033 is a deficient number, since it is larger than the sum of its proper divisors (1).
128143033 is an equidigital number, since it uses as much as digits as its factorization.
128143033 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 128143033 is about 11320.0279593294. The cubic root of 128143033 is about 504.1560691289.
Adding to 128143033 its reverse (330341821), we get a palindrome (458484854).
The spelling of 128143033 in words is "one hundred twenty-eight million, one hundred forty-three thousand, thirty-three".
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