Base | Representation |
---|---|
bin | 1001000011011110000… |
… | …00101101010110000101 |
3 | 1002202000002201122010210 |
4 | 10201233000231112011 |
5 | 20044113111231041 |
6 | 354530054510033 |
7 | 31322231143662 |
oct | 4415700552605 |
9 | 1082002648123 |
10 | 311100102021 |
11 | 10aa33996235 |
12 | 50362965319 |
13 | 2344b704307 |
14 | 110b342ca69 |
15 | 815be23016 |
hex | 486f02d585 |
311100102021 has 8 divisors (see below), whose sum is σ = 414898891264. Its totient is φ = 207350690400.
The previous prime is 311100101989. The next prime is 311100102031. The reversal of 311100102021 is 120201001113.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 311100102021 - 25 = 311100101989 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 311100101988 and 311100102006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (311100102031) 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 7 ways as a sum of consecutive naturals, for example, 12329701 + ... + 12354906.
It is an arithmetic number, because the mean of its divisors is an integer number (51862361408).
Almost surely, 2311100102021 is an apocalyptic number.
It is an amenable number.
311100102021 is a deficient number, since it is larger than the sum of its proper divisors (103798789243).
311100102021 is a wasteful number, since it uses less digits than its factorization.
311100102021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24688811.
The product of its (nonzero) digits is 12, while the sum is 12.
Adding to 311100102021 its reverse (120201001113), we get a palindrome (431301103134).
The spelling of 311100102021 in words is "three hundred eleven billion, one hundred million, one hundred two thousand, twenty-one".
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