| Base | Representation |
|---|---|
| bin | 11001110011010… |
| … | …10100101100000 |
| 3 | 120002021110022000 |
| 4 | 30321222211200 |
| 5 | 420402140412 |
| 6 | 33251044000 |
| 7 | 5235510555 |
| oct | 1471524540 |
| 9 | 502243260 |
| 10 | 216443232 |
| 11 | 1011a4005 |
| 12 | 605a0600 |
| 13 | 35ac3825 |
| 14 | 20a62a2c |
| 15 | 140064dc |
| hex | ce6a960 |
216443232 has 96 divisors (see below), whose sum is σ = 640886400. Its totient is φ = 71051904.
The previous prime is 216443219. The next prime is 216443261. The reversal of 216443232 is 232344612.
216443232 is a `hidden beast` number, since 216 + 443 + 2 + 3 + 2 = 666.
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 (27).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 216443196 and 216443205.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56019 + ... + 59757.
It is an arithmetic number, because the mean of its divisors is an integer number (6675900).
Almost surely, 2216443232 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 216443232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320443200).
216443232 is an abundant number, since it is smaller than the sum of its proper divisors (424443168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
216443232 is a wasteful number, since it uses less digits than its factorization.
216443232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3825 (or 3811 counting only the distinct ones).
The product of its digits is 6912, while the sum is 27.
The square root of 216443232 is about 14712.0097879250. The cubic root of 216443232 is about 600.4101196060.
Adding to 216443232 its reverse (232344612), we get a palindrome (448787844).
The spelling of 216443232 in words is "two hundred sixteen million, four hundred forty-three thousand, two hundred thirty-two".
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