Base | Representation |
---|---|
bin | 1111010100101… |
… | …00011011000000 |
3 | 22221212012210020 |
4 | 13222110123000 |
5 | 230401043313 |
6 | 20430533440 |
7 | 3120344205 |
oct | 752243300 |
9 | 287765706 |
10 | 128534208 |
11 | 66610720 |
12 | 37067280 |
13 | 2082455a |
14 | 130dbcac |
15 | b43e323 |
hex | 7a946c0 |
128534208 has 56 divisors (see below), whose sum is σ = 371002560. Its totient is φ = 38949120.
The previous prime is 128534191. The next prime is 128534213. The reversal of 128534208 is 802435821.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28318 + ... + 32541.
Almost surely, 2128534208 is an apocalyptic number.
It is an amenable number.
128534208 is an abundant number, since it is smaller than the sum of its proper divisors (242468352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128534208 is a wasteful number, since it uses less digits than its factorization.
128534208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60885 (or 60875 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 33.
The square root of 128534208 is about 11337.2927985476. The cubic root of 128534208 is about 504.6685509274.
The spelling of 128534208 in words is "one hundred twenty-eight million, five hundred thirty-four thousand, two hundred eight".
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