Base | Representation |
---|---|
bin | 1100101111110011010011… |
… | …00100011010000000000000 |
3 | 10200020201012121111002000000 |
4 | 12113321221210122000000 |
5 | 12133223412244200211 |
6 | 135341045532000000 |
7 | 5622103364263320 |
oct | 627715144320000 |
9 | 120221177432000 |
10 | 28030727725056 |
11 | 8a2784604a971 |
12 | 3188662000000 |
13 | 1284394c68a14 |
14 | 6cc9a1859280 |
15 | 339224772656 |
hex | 197e6991a000 |
28030727725056 has 784 divisors, whose sum is σ = 101708449896384. Its totient is φ = 7537483579392.
The previous prime is 28030727725019. The next prime is 28030727725061. The reversal of 28030727725056 is 65052772703082.
28030727725056 is a `hidden beast` number, since 2 + 80 + 30 + 7 + 27 + 7 + 2 + 505 + 6 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 28030727724993 and 28030727725011.
It is an unprimeable number.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 710644471 + ... + 710683913.
Almost surely, 228030727725056 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28030727725056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50854224948192).
28030727725056 is an abundant number, since it is smaller than the sum of its proper divisors (73677722171328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28030727725056 is an frugal number, since it uses more digits than its factorization.
28030727725056 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39511 (or 39472 counting only the distinct ones).
The product of its (nonzero) digits is 9878400, while the sum is 54.
The spelling of 28030727725056 in words is "twenty-eight trillion, thirty billion, seven hundred twenty-seven million, seven hundred twenty-five thousand, fifty-six".
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