Base | Representation |
---|---|
bin | 10010111010000011… |
… | …011011101010110000 |
3 | 1221101211112110211121 |
4 | 102322003123222300 |
5 | 313034120043440 |
6 | 13154251552024 |
7 | 1316041316200 |
oct | 227203335260 |
9 | 57354473747 |
10 | 20301331120 |
11 | 8678632604 |
12 | 3b26a5b614 |
13 | 1bb6c50585 |
14 | da8324400 |
15 | 7dc43e34a |
hex | 4ba0dbab0 |
20301331120 has 120 divisors (see below), whose sum is σ = 54979851600. Its totient is φ = 6951200256.
The previous prime is 20301331091. The next prime is 20301331123. The reversal of 20301331120 is 2113310302.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 20301331094 and 20301331103.
It is not an unprimeable number, because it can be changed into a prime (20301331123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3364266 + ... + 3370294.
It is an arithmetic number, because the mean of its divisors is an integer number (458165430).
Almost surely, 220301331120 is an apocalyptic number.
20301331120 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 20301331120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27489925800).
20301331120 is an abundant number, since it is smaller than the sum of its proper divisors (34678520480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20301331120 is a wasteful number, since it uses less digits than its factorization.
20301331120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6915 (or 6902 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 20301331120 its reverse (2113310302), we get a palindrome (22414641422).
The spelling of 20301331120 in words is "twenty billion, three hundred one million, three hundred thirty-one thousand, one hundred twenty".
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