Base | Representation |
---|---|
bin | 1111010011010… |
… | …10000000001100 |
3 | 22221112101110010 |
4 | 13221222000030 |
5 | 230330013320 |
6 | 20423113220 |
7 | 3116021514 |
oct | 751520014 |
9 | 287471403 |
10 | 128360460 |
11 | 66502128 |
12 | 36ba2810 |
13 | 20793447 |
14 | 13094844 |
15 | b407ae0 |
hex | 7a6a00c |
128360460 has 48 divisors (see below), whose sum is σ = 371008512. Its totient is φ = 33124800.
The previous prime is 128360443. The next prime is 128360473. The reversal of 128360460 is 64063821.
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 32646 + ... + 36365.
It is an arithmetic number, because the mean of its divisors is an integer number (7729344).
Almost surely, 2128360460 is an apocalyptic number.
128360460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
128360460 is an abundant number, since it is smaller than the sum of its proper divisors (242648052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128360460 is a wasteful number, since it uses less digits than its factorization.
128360460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69054 (or 69052 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 30.
The square root of 128360460 is about 11329.6275313887. The cubic root of 128360460 is about 504.4410506836.
The spelling of 128360460 in words is "one hundred twenty-eight million, three hundred sixty thousand, four hundred sixty".
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