Base | Representation |
---|---|
bin | 1101101101001100101101… |
… | …00010000111100010101101 |
3 | 10221201101102002200012221120 |
4 | 12312212112202013202231 |
5 | 12422304324111322341 |
6 | 144034133455451153 |
7 | 6230365001515152 |
oct | 666462642074255 |
9 | 127641362605846 |
10 | 30140311042221 |
11 | 9670485910886 |
12 | 3469489226ab9 |
13 | 13a82b05970a3 |
14 | 762b28024229 |
15 | 374042e8b066 |
hex | 1b69968878ad |
30140311042221 has 4 divisors (see below), whose sum is σ = 40187081389632. Its totient is φ = 20093540694812.
The previous prime is 30140311042111. The next prime is 30140311042229. The reversal of 30140311042221 is 12224011304103.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30140311042221 - 214 = 30140311025837 is a prime.
It is a super-2 number, since 2×301403110422212 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30140311042191 and 30140311042200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30140311042229) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5023385173701 + ... + 5023385173706.
It is an arithmetic number, because the mean of its divisors is an integer number (10046770347408).
Almost surely, 230140311042221 is an apocalyptic number.
It is an amenable number.
30140311042221 is a deficient number, since it is larger than the sum of its proper divisors (10046770347411).
30140311042221 is a wasteful number, since it uses less digits than its factorization.
30140311042221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10046770347410.
The product of its (nonzero) digits is 1152, while the sum is 24.
Adding to 30140311042221 its reverse (12224011304103), we get a palindrome (42364322346324).
The spelling of 30140311042221 in words is "thirty trillion, one hundred forty billion, three hundred eleven million, forty-two thousand, two hundred twenty-one".
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