Base | Representation |
---|---|
bin | 111011111010110111… |
… | …0100011011001110100 |
3 | 110022010200212021102220 |
4 | 1313311232203121310 |
5 | 4102012212020030 |
6 | 135040243402340 |
7 | 12203504450361 |
oct | 1676556433164 |
9 | 408120767386 |
10 | 128676673140 |
11 | 4a63169a074 |
12 | 20b316833b0 |
13 | c1989900a2 |
14 | 6329835468 |
15 | 3531ab6a10 |
hex | 1df5ba3674 |
128676673140 has 96 divisors (see below), whose sum is σ = 372807792000. Its totient is φ = 33122621952.
The previous prime is 128676673091. The next prime is 128676673141. The reversal of 128676673140 is 41376676821.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128676673141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11790006 + ... + 11800914.
It is an arithmetic number, because the mean of its divisors is an integer number (3883414500).
Almost surely, 2128676673140 is an apocalyptic number.
128676673140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
128676673140 is an abundant number, since it is smaller than the sum of its proper divisors (244131118860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128676673140 is a wasteful number, since it uses less digits than its factorization.
128676673140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17729 (or 17727 counting only the distinct ones).
The product of its (nonzero) digits is 2032128, while the sum is 51.
The spelling of 128676673140 in words is "one hundred twenty-eight billion, six hundred seventy-six million, six hundred seventy-three thousand, one hundred forty".
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