Base | Representation |
---|---|
bin | 111011100110111100… |
… | …0000010011110011000 |
3 | 110020102002202202211001 |
4 | 1313031320002132120 |
5 | 4044130031233224 |
6 | 134450041114344 |
7 | 12151105436236 |
oct | 1671570023630 |
9 | 406362682731 |
10 | 128008071064 |
11 | 4a319245475 |
12 | 209857889b4 |
13 | c0c02c5063 |
14 | 62a4b11956 |
15 | 34e3047544 |
hex | 1dcde02798 |
128008071064 has 32 divisors (see below), whose sum is σ = 248474563200. Its totient is φ = 61751441920.
The previous prime is 128008071041. The next prime is 128008071101. The reversal of 128008071064 is 460170800821.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113049 + ... + 518455.
It is an arithmetic number, because the mean of its divisors is an integer number (7764830100).
Almost surely, 2128008071064 is an apocalyptic number.
It is an amenable number.
128008071064 is a deficient number, since it is larger than the sum of its proper divisors (120466492136).
128008071064 is a wasteful number, since it uses less digits than its factorization.
128008071064 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 406803 (or 406799 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 37.
Adding to 128008071064 its reverse (460170800821), we get a palindrome (588178871885).
The spelling of 128008071064 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, sixty-four".
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