Base | Representation |
---|---|
bin | 111011111100110011… |
… | …1010101010000000000 |
3 | 110022022020120120211000 |
4 | 1313321213111100000 |
5 | 4102130410422044 |
6 | 135050533252000 |
7 | 12205226000220 |
oct | 1677147252000 |
9 | 408266516730 |
10 | 128741889024 |
11 | 4a6654927a1 |
12 | 20b4b494000 |
13 | c1a9345178 |
14 | 6334370080 |
15 | 3537699d69 |
hex | 1df99d5400 |
128741889024 has 704 divisors, whose sum is σ = 463663513600. Its totient is φ = 34470199296.
The previous prime is 128741888999. The next prime is 128741889041. The reversal of 128741889024 is 420988147821.
128741889024 is a `hidden beast` number, since 128 + 7 + 418 + 89 + 0 + 24 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 577317777 + ... + 577317999.
Almost surely, 2128741889024 is an apocalyptic number.
128741889024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128741889024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231831756800).
128741889024 is an abundant number, since it is smaller than the sum of its proper divisors (334921624576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128741889024 is a wasteful number, since it uses less digits than its factorization.
128741889024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 435 (or 411 counting only the distinct ones).
The product of its (nonzero) digits is 2064384, while the sum is 54.
The spelling of 128741889024 in words is "one hundred twenty-eight billion, seven hundred forty-one million, eight hundred eighty-nine thousand, twenty-four".
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