Base | Representation |
---|---|
bin | 11010000100011… |
… | …01011101000000 |
3 | 120020111020221210 |
4 | 31002031131000 |
5 | 421440330300 |
6 | 33411050120 |
7 | 5263530231 |
oct | 1502153500 |
9 | 506436853 |
10 | 218683200 |
11 | 102493a1a |
12 | 612a0940 |
13 | 363c9258 |
14 | 21087088 |
15 | 142ea050 |
hex | d08d740 |
218683200 has 168 divisors, whose sum is σ = 742675680. Its totient is φ = 56268800.
The previous prime is 218683193. The next prime is 218683211. The reversal of 218683200 is 2386812.
218683200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138415 + ... + 139985.
Almost surely, 2218683200 is an apocalyptic number.
218683200 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 218683200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371337840).
218683200 is an abundant number, since it is smaller than the sum of its proper divisors (523992480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
218683200 is a wasteful number, since it uses less digits than its factorization.
218683200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1625 (or 1610 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 30.
The square root of 218683200 is about 14787.9410331527. The cubic root of 218683200 is about 602.4742274175.
The spelling of 218683200 in words is "two hundred eighteen million, six hundred eighty-three thousand, two hundred".
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