Base | Representation |
---|---|
bin | 10010111010110001… |
… | …001101001000100010 |
3 | 1221102200010002111100 |
4 | 102322301031020202 |
5 | 313100203031320 |
6 | 13155401055230 |
7 | 1316245313025 |
oct | 227261151042 |
9 | 57380102440 |
10 | 20313330210 |
11 | 8684388708 |
12 | 3b2aa87516 |
13 | 1bb9592024 |
14 | da9b691bc |
15 | 7dd50e790 |
hex | 4bac4d222 |
20313330210 has 72 divisors (see below), whose sum is σ = 55210916124. Its totient is φ = 5181359040.
The previous prime is 20313330197. The next prime is 20313330229. The reversal of 20313330210 is 1203331302.
20313330210 is a `hidden beast` number, since 2 + 0 + 313 + 330 + 21 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 19600280001 + 713050209 = 140001^2 + 26703^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165721 + ... + 260940.
Almost surely, 220313330210 is an apocalyptic number.
20313330210 is an abundant number, since it is smaller than the sum of its proper divisors (34897585914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20313330210 is a wasteful number, since it uses less digits than its factorization.
20313330210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 426720 (or 426694 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 20313330210 its reverse (1203331302), we get a palindrome (21516661512).
The spelling of 20313330210 in words is "twenty billion, three hundred thirteen million, three hundred thirty thousand, two hundred ten".
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