Base | Representation |
---|---|
bin | 10010100001001000… |
… | …011100111111110000 |
3 | 1220022200210001221000 |
4 | 102201020130333300 |
5 | 311210100420010 |
6 | 13044554202000 |
7 | 1302503361222 |
oct | 224110347760 |
9 | 56280701830 |
10 | 19883216880 |
11 | 848361514a |
12 | 3a2aa23300 |
13 | 1b4b438cb7 |
14 | d689a6412 |
15 | 7b589d7c0 |
hex | 4a121cff0 |
19883216880 has 160 divisors (see below), whose sum is σ = 70337908800. Its totient is φ = 5158867968.
The previous prime is 19883216863. The next prime is 19883216891. The reversal of 19883216880 is 8861238891.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44475 + ... + 204314.
It is an arithmetic number, because the mean of its divisors is an integer number (439611930).
Almost surely, 219883216880 is an apocalyptic number.
19883216880 is a gapful number since it is divisible by the number (10) 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 19883216880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35168954400).
19883216880 is an abundant number, since it is smaller than the sum of its proper divisors (50454691920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19883216880 is a wasteful number, since it uses less digits than its factorization.
19883216880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 248848 (or 248836 counting only the distinct ones).
The product of its (nonzero) digits is 1327104, while the sum is 54.
The spelling of 19883216880 in words is "nineteen billion, eight hundred eighty-three million, two hundred sixteen thousand, eight hundred eighty".
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