Base | Representation |
---|---|
bin | 100010011111… |
… | …1001010110000 |
3 | 1021000210022100 |
4 | 1010333022300 |
5 | 14112201103 |
6 | 1443340400 |
7 | 306500400 |
oct | 104771260 |
9 | 37023270 |
10 | 18084528 |
11 | a2321a0 |
12 | 6081700 |
13 | 3992607 |
14 | 258a800 |
15 | 18c35a3 |
hex | 113f2b0 |
18084528 has 180 divisors, whose sum is σ = 64502568. Its totient is φ = 4677120.
The previous prime is 18084511. The next prime is 18084551. The reversal of 18084528 is 82548081.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 18084492 and 18084501.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77500 + ... + 77732.
Almost surely, 218084528 is an apocalyptic number.
18084528 is a gapful number since it is divisible by the number (18) 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 18084528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32251284).
18084528 is an abundant number, since it is smaller than the sum of its proper divisors (46418040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18084528 is a wasteful number, since it uses less digits than its factorization.
18084528 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 272 (or 256 counting only the distinct ones).
The product of its (nonzero) digits is 20480, while the sum is 36.
The square root of 18084528 is about 4252.5907397726. The cubic root of 18084528 is about 262.4837323252.
It can be divided in two parts, 1808 and 4528, that added together give a palindrome (6336).
The spelling of 18084528 in words is "eighteen million, eighty-four thousand, five hundred twenty-eight".
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