Base | Representation |
---|---|
bin | 1001001110111001010100… |
… | …10011101100001110000000 |
3 | 2122212221122101110020221001 |
4 | 10213130222103230032000 |
5 | 10130121041133304440 |
6 | 111103025000541344 |
7 | 4163562524234311 |
oct | 447345223541600 |
9 | 78787571406831 |
10 | 20303020213120 |
11 | 651850a680137 |
12 | 233aa40481854 |
13 | b43749a532a8 |
14 | 502958548608 |
15 | 2531dc77cb9a |
hex | 12772a4ec380 |
20303020213120 has 256 divisors, whose sum is σ = 50406466406400. Its totient is φ = 7810636087296.
The previous prime is 20303020213087. The next prime is 20303020213127. The reversal of 20303020213120 is 2131202030302.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20303020213127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7940170882 + ... + 7940173438.
It is an arithmetic number, because the mean of its divisors is an integer number (196900259400).
Almost surely, 220303020213120 is an apocalyptic number.
20303020213120 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 20303020213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25203233203200).
20303020213120 is an abundant number, since it is smaller than the sum of its proper divisors (30103446193280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20303020213120 is a wasteful number, since it uses less digits than its factorization.
20303020213120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4105 (or 4093 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 20303020213120 its reverse (2131202030302), we get a palindrome (22434222243422).
The spelling of 20303020213120 in words is "twenty trillion, three hundred three billion, twenty million, two hundred thirteen thousand, one hundred twenty".
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