Base | Representation |
---|---|
bin | 11100010110010111… |
… | …011011000111101101 |
3 | 2220120102020201220222 |
4 | 130112113123013231 |
5 | 444320120311341 |
6 | 21552311021125 |
7 | 2125221550325 |
oct | 342627330755 |
9 | 86512221828 |
10 | 30440010221 |
11 | 11a00657245 |
12 | 5a9636a7a5 |
13 | 2b415a4a8a |
14 | 168aa66285 |
15 | bd259244b |
hex | 7165db1ed |
30440010221 has 8 divisors (see below), whose sum is σ = 30950176800. Its totient is φ = 29930203440.
The previous prime is 30440010199. The next prime is 30440010299. The reversal of 30440010221 is 12201004403.
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 30440010221 - 226 = 30372901357 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30440010221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30440016221) 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, 83450 + ... + 260468.
It is an arithmetic number, because the mean of its divisors is an integer number (3868772100).
Almost surely, 230440010221 is an apocalyptic number.
It is an amenable number.
30440010221 is a deficient number, since it is larger than the sum of its proper divisors (510166579).
30440010221 is a wasteful number, since it uses less digits than its factorization.
30440010221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 179899.
The product of its (nonzero) digits is 192, while the sum is 17.
Adding to 30440010221 its reverse (12201004403), we get a palindrome (42641014624).
The spelling of 30440010221 in words is "thirty billion, four hundred forty million, ten thousand, two hundred twenty-one".
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