Base | Representation |
---|---|
bin | 1111010001000… |
… | …11100011001011 |
3 | 22220222201121002 |
4 | 13220203203023 |
5 | 230241300013 |
6 | 20413005215 |
7 | 3113410262 |
oct | 750434313 |
9 | 286881532 |
10 | 128071883 |
11 | 66325335 |
12 | 36a8380b |
13 | 206c1ca4 |
14 | 1301b5d9 |
15 | b39c358 |
hex | 7a238cb |
128071883 has 2 divisors, whose sum is σ = 128071884. Its totient is φ = 128071882.
The previous prime is 128071861. The next prime is 128071891. The reversal of 128071883 is 388170821.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 128071883 - 212 = 128067787 is a prime.
It is a super-3 number, since 3×1280718833 (a number of 25 digits) contains 333 as substring.
It is not a weakly prime, because it can be changed into another prime (128071813) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64035941 + 64035942.
It is an arithmetic number, because the mean of its divisors is an integer number (64035942).
Almost surely, 2128071883 is an apocalyptic number.
128071883 is a deficient number, since it is larger than the sum of its proper divisors (1).
128071883 is an equidigital number, since it uses as much as digits as its factorization.
128071883 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 21504, while the sum is 38.
The square root of 128071883 is about 11316.8848628940. The cubic root of 128071883 is about 504.0627428292.
The spelling of 128071883 in words is "one hundred twenty-eight million, seventy-one thousand, eight hundred eighty-three".
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