Base | Representation |
---|---|
bin | 11100001001010100… |
… | …000101111100011011 |
3 | 2220000011012112222112 |
4 | 130021110011330123 |
5 | 443343041030433 |
6 | 21514445342535 |
7 | 2116622354432 |
oct | 341124057433 |
9 | 86004175875 |
10 | 30221033243 |
11 | 118a8a92635 |
12 | 5a34b67a4b |
13 | 2b08104bbb |
14 | 1669944119 |
15 | bbd23a348 |
hex | 709505f1b |
30221033243 has 16 divisors (see below), whose sum is σ = 32061469440. Its totient is φ = 28406052000.
The previous prime is 30221033237. The next prime is 30221033309. The reversal of 30221033243 is 34233012203.
It is a cyclic number.
It is not a de Polignac number, because 30221033243 - 28 = 30221032987 is a prime.
It is a super-2 number, since 2×302210332432 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30221030243) 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 15 ways as a sum of consecutive naturals, for example, 2510108 + ... + 2522118.
It is an arithmetic number, because the mean of its divisors is an integer number (2003841840).
Almost surely, 230221033243 is an apocalyptic number.
30221033243 is a deficient number, since it is larger than the sum of its proper divisors (1840436197).
30221033243 is a wasteful number, since it uses less digits than its factorization.
30221033243 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13058.
The product of its (nonzero) digits is 2592, while the sum is 23.
Adding to 30221033243 its reverse (34233012203), we get a palindrome (64454045446).
The spelling of 30221033243 in words is "thirty billion, two hundred twenty-one million, thirty-three thousand, two hundred forty-three".
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