Base | Representation |
---|---|
bin | 10010110101010000… |
… | …010001010000000000 |
3 | 1221012020000120221210 |
4 | 102311100101100000 |
5 | 312403011411430 |
6 | 13142254050120 |
7 | 1314043023351 |
oct | 226520212000 |
9 | 57166016853 |
10 | 20220810240 |
11 | 8637136024 |
12 | 3b03aa9940 |
13 | 1ba336a097 |
14 | d9b763d28 |
15 | 7d53362b0 |
hex | 4b5411400 |
20220810240 has 176 divisors, whose sum is σ = 64790006400. Its totient is φ = 5382635520.
The previous prime is 20220810163. The next prime is 20220810241. The reversal of 20220810240 is 4201802202.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20220810241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14453061 + ... + 14454459.
Almost surely, 220220810240 is an apocalyptic number.
20220810240 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 20220810240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32395003200).
20220810240 is an abundant number, since it is smaller than the sum of its proper divisors (44569196160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20220810240 is a wasteful number, since it uses less digits than its factorization.
20220810240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2368 (or 2350 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 21.
The spelling of 20220810240 in words is "twenty billion, two hundred twenty million, eight hundred ten thousand, two hundred forty".
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