Base | Representation |
---|---|
bin | 1111010001001… |
… | …11100100001010 |
3 | 22221000120011020 |
4 | 13220213210022 |
5 | 230242311310 |
6 | 20413213310 |
7 | 3113506236 |
oct | 750474412 |
9 | 287016136 |
10 | 128088330 |
11 | 66336727 |
12 | 36a91236 |
13 | 206c9616 |
14 | 130235c6 |
15 | b3a2170 |
hex | 7a2790a |
128088330 has 32 divisors (see below), whose sum is σ = 307718784. Its totient is φ = 34122816.
The previous prime is 128088299. The next prime is 128088341. The reversal of 128088330 is 33880821.
It is a junction number, because it is equal to n+sod(n) for n = 128088291 and 128088300.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47067 + ... + 49713.
It is an arithmetic number, because the mean of its divisors is an integer number (9616212).
Almost surely, 2128088330 is an apocalyptic number.
128088330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
128088330 is an abundant number, since it is smaller than the sum of its proper divisors (179630454).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128088330 is a wasteful number, since it uses less digits than its factorization.
128088330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4270.
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 128088330 is about 11317.6114971314. The cubic root of 128088330 is about 504.0843191630.
The spelling of 128088330 in words is "one hundred twenty-eight million, eighty-eight thousand, three hundred thirty".
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