Base | Representation |
---|---|
bin | 100100101010001… |
… | …1111110110101001 |
3 | 10011201200001212010 |
4 | 1021110133312221 |
5 | 10004402010441 |
6 | 322021310133 |
7 | 42324522612 |
oct | 11124376651 |
9 | 3151601763 |
10 | 1230110121 |
11 | 581401a39 |
12 | 2a3b65349 |
13 | 167b07616 |
14 | b952ac09 |
15 | 72ed7116 |
hex | 4951fda9 |
1230110121 has 8 divisors (see below), whose sum is σ = 1643284960. Its totient is φ = 818504352.
The previous prime is 1230110071. The next prime is 1230110131. The reversal of 1230110121 is 1210110321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1230110121 - 214 = 1230093737 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1230110097 and 1230110106.
It is not an unprimeable number, because it can be changed into a prime (1230110131) 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, 390436 + ... + 393573.
It is an arithmetic number, because the mean of its divisors is an integer number (205410620).
Almost surely, 21230110121 is an apocalyptic number.
It is an amenable number.
1230110121 is a deficient number, since it is larger than the sum of its proper divisors (413174839).
1230110121 is an equidigital number, since it uses as much as digits as its factorization.
1230110121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 784535.
The product of its (nonzero) digits is 12, while the sum is 12.
The square root of 1230110121 is about 35072.9257547756. The cubic root of 1230110121 is about 1071.4732438542.
Adding to 1230110121 its reverse (1210110321), we get a palindrome (2440220442).
It can be divided in two parts, 12301 and 10121, that added together give a palindrome (22422).
The spelling of 1230110121 in words is "one billion, two hundred thirty million, one hundred ten thousand, one hundred twenty-one".
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