Base | Representation |
---|---|
bin | 11100000010000110… |
… | …100000101011011101 |
3 | 2212200201112001210012 |
4 | 130002012200223131 |
5 | 443121102012341 |
6 | 21454444053005 |
7 | 2113623023660 |
oct | 340206405335 |
9 | 85621461705 |
10 | 30100032221 |
11 | 11846757796 |
12 | 5a00534165 |
13 | 2ab901a46c |
14 | 16578476d7 |
15 | bb27d80eb |
hex | 7021a0add |
30100032221 has 8 divisors (see below), whose sum is σ = 34740632064. Its totient is φ = 25544581200.
The previous prime is 30100032167. The next prime is 30100032223. The reversal of 30100032221 is 12223000103.
It is a happy number.
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 30100032221 - 210 = 30100031197 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30100032196 and 30100032205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30100032223) 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, 21286445 + ... + 21287858.
It is an arithmetic number, because the mean of its divisors is an integer number (4342579008).
Almost surely, 230100032221 is an apocalyptic number.
It is an amenable number.
30100032221 is a deficient number, since it is larger than the sum of its proper divisors (4640599843).
30100032221 is a wasteful number, since it uses less digits than its factorization.
30100032221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42574411.
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 30100032221 its reverse (12223000103), we get a palindrome (42323032324).
The spelling of 30100032221 in words is "thirty billion, one hundred million, thirty-two thousand, two hundred twenty-one".
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