Base | Representation |
---|---|
bin | 111011100110111100… |
… | …0000010011110011010 |
3 | 110020102002202202211010 |
4 | 1313031320002132122 |
5 | 4044130031233231 |
6 | 134450041114350 |
7 | 12151105436241 |
oct | 1671570023632 |
9 | 406362682733 |
10 | 128008071066 |
11 | 4a319245477 |
12 | 209857889b6 |
13 | c0c02c5065 |
14 | 62a4b11958 |
15 | 34e3047546 |
hex | 1dcde0279a |
128008071066 has 8 divisors (see below), whose sum is σ = 256016142144. Its totient is φ = 42669357020.
The previous prime is 128008071041. The next prime is 128008071101. The reversal of 128008071066 is 660170800821.
It is a sphenic number, since it is the product of 3 distinct primes.
128008071066 is an admirable number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10667339250 + ... + 10667339261.
It is an arithmetic number, because the mean of its divisors is an integer number (32002017768).
Almost surely, 2128008071066 is an apocalyptic number.
128008071066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128008071066 is a wasteful number, since it uses less digits than its factorization.
128008071066 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21334678516.
The product of its (nonzero) digits is 32256, while the sum is 39.
Adding to 128008071066 its reverse (660170800821), we get a palindrome (788178871887).
The spelling of 128008071066 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, sixty-six".
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