| Base | Representation |
|---|---|
| bin | 1100101011111… |
| … | …1010010100000 |
| 3 | 10201010110120200 |
| 4 | 3022333102200 |
| 5 | 102110243240 |
| 6 | 5140305200 |
| 7 | 1214203650 |
| oct | 312772240 |
| 9 | 121113520 |
| 10 | 53212320 |
| 11 | 28045227 |
| 12 | 159a2200 |
| 13 | b0415a5 |
| 14 | 70d2360 |
| 15 | 4a11930 |
| hex | 32bf4a0 |
53212320 has 144 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 12160512.
The previous prime is 53212309. The next prime is 53212321. The reversal of 53212320 is 2321235.
53212320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 53212293 and 53212302.
It is not an unprimeable number, because it can be changed into a prime (53212321) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 7441 + ... + 12719.
It is an arithmetic number, because the mean of its divisors is an integer number (1441440).
Almost surely, 253212320 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 53212320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103783680).
53212320 is an abundant number, since it is smaller than the sum of its proper divisors (154355040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
53212320 is a wasteful number, since it uses less digits than its factorization.
53212320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5307 (or 5296 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 53212320 is about 7294.6775117204. The cubic root of 53212320 is about 376.1295011898.
Adding to 53212320 its reverse (2321235), we get a palindrome (55533555).
The spelling of 53212320 in words is "fifty-three million, two hundred twelve thousand, three hundred twenty".
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