Base | Representation |
---|---|
bin | 100110100100… |
… | …0100011100100 |
3 | 1102001021210210 |
4 | 1031020203210 |
5 | 20134021012 |
6 | 2001215420 |
7 | 333603552 |
oct | 115104344 |
9 | 42037723 |
10 | 20220132 |
11 | 10460759 |
12 | 6931570 |
13 | 425c69a |
14 | 2984bd2 |
15 | 1b9623c |
hex | 13488e4 |
20220132 has 12 divisors (see below), whose sum is σ = 47180336. Its totient is φ = 6740040.
The previous prime is 20220127. The next prime is 20220133. The reversal of 20220132 is 23102202.
It is a tau number, because it is divible by the number of its divisors (12).
It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1685011 = 20220132 / (2 + 0 + 2 + 2 + 0 + 1 + 3 + 2).
It is not an unprimeable number, because it can be changed into a prime (20220133) 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, 842494 + ... + 842517.
Almost surely, 220220132 is an apocalyptic number.
It is an amenable number.
20220132 is an abundant number, since it is smaller than the sum of its proper divisors (26960204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20220132 is a wasteful number, since it uses less digits than its factorization.
20220132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1685018 (or 1685016 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 20220132 is about 4496.6801087024. The cubic root of 20220132 is about 272.4340137059.
Adding to 20220132 its reverse (23102202), we get a palindrome (43322334).
The spelling of 20220132 in words is "twenty million, two hundred twenty thousand, one hundred thirty-two".
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