Base | Representation |
---|---|
bin | 11100001111111100… |
… | …100101100111010101 |
3 | 2220021220121002202202 |
4 | 130033330211213111 |
5 | 444110032441041 |
6 | 21533502414245 |
7 | 2122443253364 |
oct | 341774454725 |
9 | 86256532682 |
10 | 30332312021 |
11 | 11955887a70 |
12 | 5a66291385 |
13 | 2b2519732b |
14 | 167a62d7db |
15 | bc7dbba9b |
hex | 70ff259d5 |
30332312021 has 8 divisors (see below), whose sum is σ = 33417417888. Its totient is φ = 27301810000.
The previous prime is 30332312011. The next prime is 30332312083. The reversal of 30332312021 is 12021323303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30332312021 - 222 = 30328117717 is a prime.
It is a super-2 number, since 2×303323120212 (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 = 30332311984 and 30332312002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30332312011) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13649795 + ... + 13652016.
It is an arithmetic number, because the mean of its divisors is an integer number (4177177236).
Almost surely, 230332312021 is an apocalyptic number.
It is an amenable number.
30332312021 is a deficient number, since it is larger than the sum of its proper divisors (3085105867).
30332312021 is a wasteful number, since it uses less digits than its factorization.
30332312021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27301923.
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 30332312021 its reverse (12021323303), we get a palindrome (42353635324).
The spelling of 30332312021 in words is "thirty billion, three hundred thirty-two million, three hundred twelve thousand, twenty-one".
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