Base | Representation |
---|---|
bin | 1101000101000111101110… |
… | …00001011100101111100000 |
3 | 10202211201222000122210112211 |
4 | 12202203313001130233200 |
5 | 12232224111303204430 |
6 | 141101352535131504 |
7 | 6026035014430420 |
oct | 642436701345740 |
9 | 122751860583484 |
10 | 28763245366240 |
11 | 918a473175690 |
12 | 3286614813b94 |
13 | 1308493265a58 |
14 | 7162116cc480 |
15 | 34d2e84b672a |
hex | 1a28f705cbe0 |
28763245366240 has 192 divisors, whose sum is σ = 84726782784000. Its totient is φ = 8964537661440.
The previous prime is 28763245366217. The next prime is 28763245366267. The reversal of 28763245366240 is 4266354236782.
It is a congruent number.
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, 193953559 + ... + 194101801.
It is an arithmetic number, because the mean of its divisors is an integer number (441285327000).
Almost surely, 228763245366240 is an apocalyptic number.
28763245366240 is a gapful number since it is divisible by the number (20) 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 28763245366240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42363391392000).
28763245366240 is an abundant number, since it is smaller than the sum of its proper divisors (55963537417760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28763245366240 is a wasteful number, since it uses less digits than its factorization.
28763245366240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 164025 (or 164017 counting only the distinct ones).
The product of its (nonzero) digits is 69672960, while the sum is 58.
The spelling of 28763245366240 in words is "twenty-eight trillion, seven hundred sixty-three billion, two hundred forty-five million, three hundred sixty-six thousand, two hundred forty".
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