Base | Representation |
---|---|
bin | 100110100100… |
… | …0110100110000 |
3 | 1102001100022112 |
4 | 1031020310300 |
5 | 20134034412 |
6 | 2001224452 |
7 | 333610013 |
oct | 115106460 |
9 | 42040275 |
10 | 20221232 |
11 | 10461569 |
12 | 6932128 |
13 | 4260035 |
14 | 298537a |
15 | 1b96722 |
hex | 1348d30 |
20221232 has 20 divisors (see below), whose sum is σ = 40882800. Its totient is φ = 9670848.
The previous prime is 20221231. The next prime is 20221259. The reversal of 20221232 is 23212202.
It is not an unprimeable number, because it can be changed into a prime (20221231) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27107 + ... + 27842.
It is an arithmetic number, because the mean of its divisors is an integer number (2044140).
Almost surely, 220221232 is an apocalyptic number.
It is an amenable number.
20221232 is an abundant number, since it is smaller than the sum of its proper divisors (20661568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20221232 is a wasteful number, since it uses less digits than its factorization.
20221232 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54980 (or 54974 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 20221232 is about 4496.8024194977. The cubic root of 20221232 is about 272.4389538645.
Adding to 20221232 its reverse (23212202), we get a palindrome (43433434).
The spelling of 20221232 in words is "twenty million, two hundred twenty-one thousand, two hundred thirty-two".
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