Base | Representation |
---|---|
bin | 1010001111010111… |
… | …0111000010100000 |
3 | 21002120100202221222 |
4 | 2203311313002200 |
5 | 21112143232110 |
6 | 1132432234212 |
7 | 125055313364 |
oct | 24365670240 |
9 | 7076322858 |
10 | 2748805280 |
11 | 11906a1101 |
12 | 64869b968 |
13 | 34a644100 |
14 | 1c10d92a4 |
15 | 1114c5c55 |
hex | a3d770a0 |
2748805280 has 144 divisors (see below), whose sum is σ = 7155358560. Its totient is φ = 997161984.
The previous prime is 2748805261. The next prime is 2748805307. The reversal of 2748805280 is 825088472.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1594499 + ... + 1596221.
It is an arithmetic number, because the mean of its divisors is an integer number (49689990).
Almost surely, 22748805280 is an apocalyptic number.
2748805280 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 2748805280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577679280).
2748805280 is an abundant number, since it is smaller than the sum of its proper divisors (4406553280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2748805280 is a wasteful number, since it uses less digits than its factorization.
2748805280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1823 (or 1802 counting only the distinct ones).
The product of its (nonzero) digits is 286720, while the sum is 44.
The square root of 2748805280 is about 52429.0499627830. The cubic root of 2748805280 is about 1400.8167479135.
The spelling of 2748805280 in words is "two billion, seven hundred forty-eight million, eight hundred five thousand, two hundred eighty".
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