Base | Representation |
---|---|
bin | 111011101110000101… |
… | …0110110010000110100 |
3 | 110021000211000110200100 |
4 | 1313130022312100310 |
5 | 4100122424222204 |
6 | 134525525114100 |
7 | 12160050005646 |
oct | 1673412662064 |
9 | 407024013610 |
10 | 128247882804 |
11 | 4a43164a598 |
12 | 20a31b58930 |
13 | c12abab2b2 |
14 | 62c88d8896 |
15 | 3509117a39 |
hex | 1ddc2b6434 |
128247882804 has 18 divisors (see below), whose sum is σ = 324182148290. Its totient is φ = 42749294256.
The previous prime is 128247882767. The next prime is 128247882857. The reversal of 128247882804 is 408288742821.
128247882804 is a `hidden beast` number, since 1 + 282 + 4 + 7 + 88 + 280 + 4 = 666.
It can be written as a sum of positive squares in only one way, i.e., 108801022500 + 19446860304 = 329850^2 + 139452^2 .
It is a tau number, because it is divible by the number of its divisors (18).
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 5 ways as a sum of consecutive naturals, for example, 1781220559 + ... + 1781220630.
Almost surely, 2128247882804 is an apocalyptic number.
It is an amenable number.
128247882804 is an abundant number, since it is smaller than the sum of its proper divisors (195934265486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128247882804 is a wasteful number, since it uses less digits than its factorization.
128247882804 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3562441199 (or 3562441194 counting only the distinct ones).
The product of its (nonzero) digits is 3670016, while the sum is 54.
The spelling of 128247882804 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, eight hundred four".
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