Base | Representation |
---|---|
bin | 10010110100000001… |
… | …100001110011101000 |
3 | 1221010210011220001120 |
4 | 102310001201303220 |
5 | 312332220344210 |
6 | 13140235415240 |
7 | 1313402413026 |
oct | 226401416350 |
9 | 57123156046 |
10 | 20200168680 |
11 | 862651778a |
12 | 3ab8bb4520 |
13 | 1b9bcc0943 |
14 | d98b0d716 |
15 | 7d360a270 |
hex | 4b4061ce8 |
20200168680 has 32 divisors (see below), whose sum is σ = 60600506400. Its totient is φ = 5386711616.
The previous prime is 20200168673. The next prime is 20200168697. The reversal of 20200168680 is 8686100202.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84167250 + ... + 84167489.
It is an arithmetic number, because the mean of its divisors is an integer number (1893765825).
Almost surely, 220200168680 is an apocalyptic number.
20200168680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20200168680 is an abundant number, since it is smaller than the sum of its proper divisors (40400337720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20200168680 is a wasteful number, since it uses less digits than its factorization.
20200168680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 168334753 (or 168334749 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 33.
Adding to 20200168680 its reverse (8686100202), we get a palindrome (28886268882).
The spelling of 20200168680 in words is "twenty billion, two hundred million, one hundred sixty-eight thousand, six hundred eighty".
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