Base | Representation |
---|---|
bin | 1111010001000… |
… | …00001110101000 |
3 | 22220222000221021 |
4 | 13220200032220 |
5 | 230240331110 |
6 | 20412422224 |
7 | 3113322520 |
oct | 750401650 |
9 | 286860837 |
10 | 128058280 |
11 | 66316099 |
12 | 36a77974 |
13 | 206b8a3c |
14 | 13016680 |
15 | b3982da |
hex | 7a203a8 |
128058280 has 64 divisors (see below), whose sum is σ = 348675840. Its totient is φ = 41321472.
The previous prime is 128058269. The next prime is 128058299. The reversal of 128058280 is 82850821.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (34).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8692 + ... + 18211.
It is an arithmetic number, because the mean of its divisors is an integer number (5448060).
Almost surely, 2128058280 is an apocalyptic number.
128058280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
128058280 is an abundant number, since it is smaller than the sum of its proper divisors (220617560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128058280 is a wasteful number, since it uses less digits than its factorization.
128058280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26938 (or 26934 counting only the distinct ones).
The product of its (nonzero) digits is 10240, while the sum is 34.
The square root of 128058280 is about 11316.2838423221. The cubic root of 128058280 is about 504.0448960594.
The spelling of 128058280 in words is "one hundred twenty-eight million, fifty-eight thousand, two hundred eighty".
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