Base | Representation |
---|---|
bin | 1100111000000010000101… |
… | …01100111100110011001100 |
3 | 10201020202012112020202111220 |
4 | 12130001002230330303030 |
5 | 12202342114113313420 |
6 | 140115021243243340 |
7 | 5651405000540331 |
oct | 634010254746314 |
9 | 121222175222456 |
10 | 28313543494860 |
11 | 9026785196728 |
12 | 3213430519550 |
13 | 12a4c5687ba80 |
14 | 6dc550642988 |
15 | 3417784b7840 |
hex | 19c042b3cccc |
28313543494860 has 48 divisors (see below), whose sum is σ = 85376223463776. Its totient is φ = 6969487629312.
The previous prime is 28313543494799. The next prime is 28313543494867. The reversal of 28313543494860 is 6849434531382.
It is a Harshad number since it is a multiple of its sum of digits (60).
It is a junction number, because it is equal to n+sod(n) for n = 28313543494794 and 28313543494803.
It is not an unprimeable number, because it can be changed into a prime (28313543494867) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18149706589 + ... + 18149708148.
It is an arithmetic number, because the mean of its divisors is an integer number (1778671322162).
Almost surely, 228313543494860 is an apocalyptic number.
28313543494860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28313543494860 is an abundant number, since it is smaller than the sum of its proper divisors (57062679968916).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28313543494860 is a wasteful number, since it uses less digits than its factorization.
28313543494860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36299414762 (or 36299414760 counting only the distinct ones).
The product of its (nonzero) digits is 59719680, while the sum is 60.
The spelling of 28313543494860 in words is "twenty-eight trillion, three hundred thirteen billion, five hundred forty-three million, four hundred ninety-four thousand, eight hundred sixty".
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