Base | Representation |
---|---|
bin | 11011111110000111… |
… | …111101001000000101 |
3 | 2212112001221211011022 |
4 | 123332013331020011 |
5 | 443002011131041 |
6 | 21444101520525 |
7 | 2112152566202 |
oct | 337607751005 |
9 | 85461854138 |
10 | 30033302021 |
11 | 1181201a368 |
12 | 59a2113145 |
13 | 2aa8255038 |
14 | 164ca36ca9 |
15 | baba0624b |
hex | 6fe1fd205 |
30033302021 has 8 divisors (see below), whose sum is σ = 30157506720. Its totient is φ = 29909211408.
The previous prime is 30033301979. The next prime is 30033302023. The reversal of 30033302021 is 12020333003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30033302021 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 (30033302023) 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, 520790 + ... + 575576.
It is an arithmetic number, because the mean of its divisors is an integer number (3769688340).
Almost surely, 230033302021 is an apocalyptic number.
It is an amenable number.
30033302021 is a deficient number, since it is larger than the sum of its proper divisors (124204699).
30033302021 is a wasteful number, since it uses less digits than its factorization.
30033302021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57043.
The product of its (nonzero) digits is 324, while the sum is 17.
Adding to 30033302021 its reverse (12020333003), we get a palindrome (42053635024).
The spelling of 30033302021 in words is "thirty billion, thirty-three million, three hundred two thousand, twenty-one".
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