Base | Representation |
---|---|
bin | 111011111010101011… |
… | …0010001100001001110 |
3 | 110022010020212220200220 |
4 | 1313311112101201032 |
5 | 4102004044332210 |
6 | 135035455132210 |
7 | 12203366401356 |
oct | 1676526214116 |
9 | 408106786626 |
10 | 128670308430 |
11 | 4a629042184 |
12 | 20b2b514066 |
13 | c1975720a1 |
14 | 6328a59b66 |
15 | 353125ac70 |
hex | 1df559184e |
128670308430 has 16 divisors (see below), whose sum is σ = 308808740304. Its totient is φ = 34312082240.
The previous prime is 128670308369. The next prime is 128670308447. The reversal of 128670308430 is 34803076821.
It is a congruent number.
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, 2144505111 + ... + 2144505170.
It is an arithmetic number, because the mean of its divisors is an integer number (19300546269).
Almost surely, 2128670308430 is an apocalyptic number.
128670308430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
128670308430 is an abundant number, since it is smaller than the sum of its proper divisors (180138431874).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128670308430 is a wasteful number, since it uses less digits than its factorization.
128670308430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4289010291.
The product of its (nonzero) digits is 193536, while the sum is 42.
The spelling of 128670308430 in words is "one hundred twenty-eight billion, six hundred seventy million, three hundred eight thousand, four hundred thirty".
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