Base | Representation |
---|---|
bin | 11101010001110101111000… |
… | …010100101010101100101100 |
3 | 121212221020102012110002111122 |
4 | 131101311320110222230230 |
5 | 113334224244343410233 |
6 | 1133511505544240112 |
7 | 36060166411313054 |
oct | 3521657024525454 |
9 | 555836365402448 |
10 | 128769433185068 |
11 | 380368a0025715 |
12 | 12538466770038 |
13 | 56b0ba0358450 |
14 | 23b268c240564 |
15 | ed48c611dd98 |
hex | 751d7852ab2c |
128769433185068 has 96 divisors (see below), whose sum is σ = 247106298774720. Its totient is φ = 58359489638400.
The previous prime is 128769433185037. The next prime is 128769433185079. The reversal of 128769433185068 is 860581334967821.
It is a junction number, because it is equal to n+sod(n) for n = 128769433184992 and 128769433185010.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466548155 + ... + 466824077.
It is an arithmetic number, because the mean of its divisors is an integer number (2574023945570).
It is a 1-persistent number, because it is pandigital, but 2⋅128769433185068 = 257538866370136 is not.
Almost surely, 2128769433185068 is an apocalyptic number.
It is an amenable number.
128769433185068 is a deficient number, since it is larger than the sum of its proper divisors (118336865589652).
128769433185068 is a wasteful number, since it uses less digits than its factorization.
128769433185068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 276787 (or 276785 counting only the distinct ones).
The product of its (nonzero) digits is 418037760, while the sum is 71.
The spelling of 128769433185068 in words is "one hundred twenty-eight trillion, seven hundred sixty-nine billion, four hundred thirty-three million, one hundred eighty-five thousand, sixty-eight".
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