Base | Representation |
---|---|
bin | 1111010100000… |
… | …10011111111001 |
3 | 22221201111002011 |
4 | 13222002133321 |
5 | 230341221133 |
6 | 20425205521 |
7 | 3116620156 |
oct | 752023771 |
9 | 287644064 |
10 | 128460793 |
11 | 6657054a |
12 | 370308a1 |
13 | 207ca006 |
14 | 130bd22d |
15 | b4276cd |
hex | 7a827f9 |
128460793 has 2 divisors, whose sum is σ = 128460794. Its totient is φ = 128460792.
The previous prime is 128460779. The next prime is 128460811. The reversal of 128460793 is 397064821.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 85322169 + 43138624 = 9237^2 + 6568^2 .
It is a cyclic number.
It is not a de Polignac number, because 128460793 - 29 = 128460281 is a prime.
It is equal to p7295647 and since 128460793 and 7295647 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (128460733) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64230396 + 64230397.
It is an arithmetic number, because the mean of its divisors is an integer number (64230397).
Almost surely, 2128460793 is an apocalyptic number.
It is an amenable number.
128460793 is a deficient number, since it is larger than the sum of its proper divisors (1).
128460793 is an equidigital number, since it uses as much as digits as its factorization.
128460793 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72576, while the sum is 40.
The square root of 128460793 is about 11334.0545701880. The cubic root of 128460793 is about 504.5724486304.
The spelling of 128460793 in words is "one hundred twenty-eight million, four hundred sixty thousand, seven hundred ninety-three".
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