Base | Representation |
---|---|
bin | 11100101111100111… |
… | …111011010011111100 |
3 | 2221122221121210122100 |
4 | 130233213323103330 |
5 | 1001202111014110 |
6 | 22102325345100 |
7 | 2141555455230 |
oct | 345747732374 |
9 | 87587553570 |
10 | 30863766780 |
11 | 120a8878880 |
12 | 5b94268190 |
13 | 2bab3135c2 |
14 | 16cb0525c0 |
15 | c09899bc0 |
hex | 72f9fb4fc |
30863766780 has 576 divisors, whose sum is σ = 124691374080. Its totient is φ = 5989939200.
The previous prime is 30863766779. The next prime is 30863766797. The reversal of 30863766780 is 8766736803.
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12458902 + ... + 12461378.
It is an arithmetic number, because the mean of its divisors is an integer number (216478080).
Almost surely, 230863766780 is an apocalyptic number.
30863766780 is a gapful number since it is divisible by the number (30) 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 30863766780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62345687040).
30863766780 is an abundant number, since it is smaller than the sum of its proper divisors (93827607300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30863766780 is a wasteful number, since it uses less digits than its factorization.
30863766780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2570 (or 2565 counting only the distinct ones).
The product of its (nonzero) digits is 6096384, while the sum is 54.
The spelling of 30863766780 in words is "thirty billion, eight hundred sixty-three million, seven hundred sixty-six thousand, seven hundred eighty".
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