Base | Representation |
---|---|
bin | 1001000101010111110… |
… | …00000000001111011101 |
3 | 1002211122021011022210201 |
4 | 10202223320000033131 |
5 | 20103211013332201 |
6 | 355215253103501 |
7 | 31356440453236 |
oct | 4425370001735 |
9 | 1084567138721 |
10 | 312121230301 |
11 | 110408330001 |
12 | 505a8927b91 |
13 | 2358212b32a |
14 | 1116ccba08d |
15 | 81bb8c9801 |
hex | 48abe003dd |
312121230301 has 16 divisors (see below), whose sum is σ = 320052466944. Its totient is φ = 304267227264.
The previous prime is 312121230283. The next prime is 312121230313. The reversal of 312121230301 is 103032121213.
It is a cyclic number.
It is not a de Polignac number, because 312121230301 - 25 = 312121230269 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312121230331) 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, 25281136 + ... + 25293478.
It is an arithmetic number, because the mean of its divisors is an integer number (20003279184).
Almost surely, 2312121230301 is an apocalyptic number.
It is an amenable number.
312121230301 is a deficient number, since it is larger than the sum of its proper divisors (7931236643).
312121230301 is a wasteful number, since it uses less digits than its factorization.
312121230301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15420.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 312121230301 its reverse (103032121213), we get a palindrome (415153351514).
It can be divided in two parts, 3121212 and 30301, that added together give a palindrome (3151513).
The spelling of 312121230301 in words is "three hundred twelve billion, one hundred twenty-one million, two hundred thirty thousand, three hundred one".
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