Base | Representation |
---|---|
bin | 1101000000111011101111… |
… | …10010001110110110110000 |
3 | 10202022222121120110211222200 |
4 | 12200131313302032312300 |
5 | 12222344440422000000 |
6 | 140511320555303200 |
7 | 6012452556400521 |
oct | 640356762166660 |
9 | 122288546424880 |
10 | 28619376750000 |
11 | 9134456084943 |
12 | 326276344ab00 |
13 | 12c7a4606392a |
14 | 70d28438a848 |
15 | 3496c7d23500 |
hex | 1a0777c8edb0 |
28619376750000 has 420 divisors, whose sum is σ = 106006218884280. Its totient is φ = 7182892800000.
The previous prime is 28619376749969. The next prime is 28619376750001. The reversal of 28619376750000 is 5767391682.
28619376750000 is a `hidden beast` number, since 2 + 8 + 61 + 9 + 3 + 76 + 7 + 500 + 0 + 0 = 666.
It is not an unprimeable number, because it can be changed into a prime (28619376750001) by changing a digit.
It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 37875891 + ... + 38624109.
Almost surely, 228619376750000 is an apocalyptic number.
28619376750000 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 28619376750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53003109442140).
28619376750000 is an abundant number, since it is smaller than the sum of its proper divisors (77386842134280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28619376750000 is an equidigital number, since it uses as much as digits as its factorization.
28619376750000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 748280 (or 748246 counting only the distinct ones).
The product of its (nonzero) digits is 3810240, while the sum is 54.
The spelling of 28619376750000 in words is "twenty-eight trillion, six hundred nineteen billion, three hundred seventy-six million, seven hundred fifty thousand".
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