Base | Representation |
---|---|
bin | 11100000010001110… |
… | …110101001011010011 |
3 | 2212200212121212201001 |
4 | 130002032311023103 |
5 | 443122131311311 |
6 | 21455002522431 |
7 | 2113650406621 |
oct | 340216651323 |
9 | 85625555631 |
10 | 30102213331 |
11 | 11847a07463 |
12 | 5a01206417 |
13 | 2ab9602168 |
14 | 1657c54511 |
15 | bb2ab94c1 |
hex | 7023b52d3 |
30102213331 has 4 divisors (see below), whose sum is σ = 30103048552. Its totient is φ = 30101378112.
The previous prime is 30102213319. The next prime is 30102213341. The reversal of 30102213331 is 13331220103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13331220103 = 2281 ⋅5844463.
It is a cyclic number.
It is not a de Polignac number, because 30102213331 - 25 = 30102213299 is a prime.
It is a super-2 number, since 2×301022133312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30102213299 and 30102213308.
It is not an unprimeable number, because it can be changed into a prime (30102213341) 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 3 ways as a sum of consecutive naturals, for example, 360990 + ... + 436483.
It is an arithmetic number, because the mean of its divisors is an integer number (7525762138).
Almost surely, 230102213331 is an apocalyptic number.
30102213331 is a deficient number, since it is larger than the sum of its proper divisors (835221).
30102213331 is an equidigital number, since it uses as much as digits as its factorization.
30102213331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 835220.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 30102213331 its reverse (13331220103), we get a palindrome (43433433434).
The spelling of 30102213331 in words is "thirty billion, one hundred two million, two hundred thirteen thousand, three hundred thirty-one".
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