Base | Representation |
---|---|
bin | 1000001101011000111100… |
… | …01011110011110010100000 |
3 | 2100220210000121122201102210 |
4 | 10012230132023303302200 |
5 | 4331232004003113110 |
6 | 102221031352442120 |
7 | 3542142452564364 |
oct | 406543613636240 |
9 | 70823017581383 |
10 | 18052253957280 |
11 | 582aa10812814 |
12 | 20367933a9340 |
13 | a0c42176341a |
14 | 465a3b5c32a4 |
15 | 2148a9577520 |
hex | 106b1e2f3ca0 |
18052253957280 has 192 divisors, whose sum is σ = 57201113692800. Its totient is φ = 4785516871680.
The previous prime is 18052253957279. The next prime is 18052253957321. The reversal of 18052253957280 is 8275935225081.
It is a self number, because there is not a number n which added to its sum of digits gives 18052253957280.
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, 65684791 + ... + 65959049.
It is an arithmetic number, because the mean of its divisors is an integer number (297922467150).
Almost surely, 218052253957280 is an apocalyptic number.
18052253957280 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 18052253957280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28600556846400).
18052253957280 is an abundant number, since it is smaller than the sum of its proper divisors (39148859735520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18052253957280 is a wasteful number, since it uses less digits than its factorization.
18052253957280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 275087 (or 275079 counting only the distinct ones).
The product of its (nonzero) digits is 12096000, while the sum is 57.
The spelling of 18052253957280 in words is "eighteen trillion, fifty-two billion, two hundred fifty-three million, nine hundred fifty-seven thousand, two hundred eighty".
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