Base | Representation |
---|---|
bin | 10010111010110000… |
… | …000011111010100000 |
3 | 1221102122112212002201 |
4 | 102322300003322200 |
5 | 313100113432204 |
6 | 13155350422544 |
7 | 1316242623460 |
oct | 227260037240 |
9 | 57378485081 |
10 | 20313030304 |
11 | 86841a3356 |
12 | 3b2a961a54 |
13 | 1bb94b8678 |
14 | da9acbba0 |
15 | 7dd4a09a4 |
hex | 4bac03ea0 |
20313030304 has 96 divisors (see below), whose sum is σ = 46234976256. Its totient is φ = 8605121280.
The previous prime is 20313030293. The next prime is 20313030307. The reversal of 20313030304 is 40303031302.
It is not an unprimeable number, because it can be changed into a prime (20313030307) 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, 7143507 + ... + 7146349.
It is an arithmetic number, because the mean of its divisors is an integer number (481614336).
Almost surely, 220313030304 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20313030304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23117488128).
20313030304 is an abundant number, since it is smaller than the sum of its proper divisors (25921945952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20313030304 is a wasteful number, since it uses less digits than its factorization.
20313030304 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3218 (or 3210 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 19.
Adding to 20313030304 its reverse (40303031302), we get a palindrome (60616061606).
The spelling of 20313030304 in words is "twenty billion, three hundred thirteen million, thirty thousand, three hundred four".
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