Base | Representation |
---|---|
bin | 11100001001010101… |
… | …001111001000010101 |
3 | 2220000011202210012010 |
4 | 130021111033020111 |
5 | 443343130124023 |
6 | 21514500014433 |
7 | 2116625043414 |
oct | 341125171025 |
9 | 86004683163 |
10 | 30221333013 |
11 | 118a9177883 |
12 | 5a35091419 |
13 | 2b081ab491 |
14 | 16699c147b |
15 | bbd299093 |
hex | 70954f215 |
30221333013 has 16 divisors (see below), whose sum is σ = 40555074560. Its totient is φ = 20017651824.
The previous prime is 30221332913. The next prime is 30221333017. The reversal of 30221333013 is 31033312203.
It is not a de Polignac number, because 30221333013 - 210 = 30221331989 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 (30221333017) 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, 1949748 + ... + 1965186.
It is an arithmetic number, because the mean of its divisors is an integer number (2534692160).
Almost surely, 230221333013 is an apocalyptic number.
It is an amenable number.
30221333013 is a deficient number, since it is larger than the sum of its proper divisors (10333741547).
30221333013 is a wasteful number, since it uses less digits than its factorization.
30221333013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19608.
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 30221333013 its reverse (31033312203), we get a palindrome (61254645216).
The spelling of 30221333013 in words is "thirty billion, two hundred twenty-one million, three hundred thirty-three thousand, thirteen".
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