Base | Representation |
---|---|
bin | 11010000101010000… |
… | …100011110111111010 |
3 | 2200021202022112221220 |
4 | 122011100203313322 |
5 | 424323402432441 |
6 | 20510543212510 |
7 | 2011000643016 |
oct | 320520436772 |
9 | 80252275856 |
10 | 28005514746 |
11 | 10971423810 |
12 | 5516ba7136 |
13 | 28440cbc01 |
14 | 14d95c7546 |
15 | add9a5466 |
hex | 685423dfa |
28005514746 has 16 divisors (see below), whose sum is σ = 61102941408. Its totient is φ = 8486519600.
The previous prime is 28005514729. The next prime is 28005514753. The reversal of 28005514746 is 64741550082.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 28005514698 and 28005514707.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212162925 + ... + 212163056.
It is an arithmetic number, because the mean of its divisors is an integer number (3818933838).
Almost surely, 228005514746 is an apocalyptic number.
28005514746 is an abundant number, since it is smaller than the sum of its proper divisors (33097426662).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28005514746 is a wasteful number, since it uses less digits than its factorization.
28005514746 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 424325997.
The product of its (nonzero) digits is 268800, while the sum is 42.
The spelling of 28005514746 in words is "twenty-eight billion, five million, five hundred fourteen thousand, seven hundred forty-six".
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