Base | Representation |
---|---|
bin | 1111010110010… |
… | …10010110001011 |
3 | 22222021102202210 |
4 | 13223022112023 |
5 | 230430130313 |
6 | 20435400203 |
7 | 3122254152 |
oct | 753122613 |
9 | 288242683 |
10 | 128755083 |
11 | 66751666 |
12 | 37153063 |
13 | 208a0c52 |
14 | 13158599 |
15 | b4849c3 |
hex | 7aca58b |
128755083 has 8 divisors (see below), whose sum is σ = 171854848. Its totient is φ = 85746024.
The previous prime is 128755061. The next prime is 128755091. The reversal of 128755083 is 380557821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 128755083 - 221 = 126657931 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (128756083) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19291 + ... + 25092.
It is an arithmetic number, because the mean of its divisors is an integer number (21481856).
Almost surely, 2128755083 is an apocalyptic number.
128755083 is a deficient number, since it is larger than the sum of its proper divisors (43099765).
128755083 is an equidigital number, since it uses as much as digits as its factorization.
128755083 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45353.
The product of its (nonzero) digits is 67200, while the sum is 39.
The square root of 128755083 is about 11347.0296994412. The cubic root of 128755083 is about 504.9574620249.
The spelling of 128755083 in words is "one hundred twenty-eight million, seven hundred fifty-five thousand, eighty-three".
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