Base | Representation |
---|---|
bin | 100010101011… |
… | …0100000000000 |
3 | 1021012122101220 |
4 | 1011112200000 |
5 | 14123230341 |
6 | 1445355040 |
7 | 310346124 |
oct | 105264000 |
9 | 37178356 |
10 | 18180096 |
11 | a297a80 |
12 | 6108a80 |
13 | 39c6c6c |
14 | 25b3584 |
15 | 18e1a66 |
hex | 1156800 |
18180096 has 96 divisors (see below), whose sum is σ = 53071200. Its totient is φ = 5488640.
The previous prime is 18180077. The next prime is 18180161. The reversal of 18180096 is 69008181.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67450 + ... + 67718.
It is an arithmetic number, because the mean of its divisors is an integer number (552825).
Almost surely, 218180096 is an apocalyptic number.
18180096 is a gapful number since it is divisible by the number (16) 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 18180096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26535600).
18180096 is an abundant number, since it is smaller than the sum of its proper divisors (34891104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18180096 is a wasteful number, since it uses less digits than its factorization.
18180096 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 305 (or 285 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 33.
The square root of 18180096 is about 4263.8123786114. The cubic root of 18180096 is about 262.9452868495.
The spelling of 18180096 in words is "eighteen million, one hundred eighty thousand, ninety-six".
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