Base | Representation |
---|---|
bin | 100110100010… |
… | …0001010110000 |
3 | 1102000101011011 |
4 | 1031010022300 |
5 | 20132432120 |
6 | 2001000304 |
7 | 333500266 |
oct | 115041260 |
9 | 42011134 |
10 | 20202160 |
11 | 10449200 |
12 | 6923094 |
13 | 4254454 |
14 | 297c436 |
15 | 1b90c5a |
hex | 13442b0 |
20202160 has 60 divisors (see below), whose sum is σ = 51652944. Its totient is φ = 7342720.
The previous prime is 20202113. The next prime is 20202167. The reversal of 20202160 is 6120202.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 20202160.
It is not an unprimeable number, because it can be changed into a prime (20202167) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8637 + ... + 10723.
Almost surely, 220202160 is an apocalyptic number.
20202160 is a gapful number since it is divisible by the number (20) 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 20202160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25826472).
20202160 is an abundant number, since it is smaller than the sum of its proper divisors (31450784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20202160 is a wasteful number, since it uses less digits than its factorization.
20202160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2122 (or 2105 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 20202160 is about 4494.6813012715. The cubic root of 20202160 is about 272.3532751064.
Adding to 20202160 its reverse (6120202), we get a palindrome (26322362).
The spelling of 20202160 in words is "twenty million, two hundred two thousand, one hundred sixty".
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