Base | Representation |
---|---|
bin | 11010111001001001… |
… | …011011000001100000 |
3 | 2202112102101202210022 |
4 | 122321021123001200 |
5 | 433114232334340 |
6 | 21133202053012 |
7 | 2041401310055 |
oct | 327111330140 |
9 | 82472352708 |
10 | 28876058720 |
11 | 11278867343 |
12 | 571a64a168 |
13 | 29525810a2 |
14 | 157d07702c |
15 | b401143b5 |
hex | 6b925b060 |
28876058720 has 24 divisors (see below), whose sum is σ = 68219689104. Its totient is φ = 11550423424.
The previous prime is 28876058693. The next prime is 28876058723. The reversal of 28876058720 is 2785067882.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28876058723) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90237524 + ... + 90237843.
It is an arithmetic number, because the mean of its divisors is an integer number (2842487046).
Almost surely, 228876058720 is an apocalyptic number.
28876058720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28876058720 is an abundant number, since it is smaller than the sum of its proper divisors (39343630384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28876058720 is a wasteful number, since it uses less digits than its factorization.
28876058720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180475382 (or 180475374 counting only the distinct ones).
The product of its (nonzero) digits is 3010560, while the sum is 53.
The spelling of 28876058720 in words is "twenty-eight billion, eight hundred seventy-six million, fifty-eight thousand, seven hundred twenty".
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