Base | Representation |
---|---|
bin | 11100001001010001… |
… | …011000000111011010 |
3 | 2220000002212101022010 |
4 | 130021101120013122 |
5 | 443342400234432 |
6 | 21514422210350 |
7 | 2116613330556 |
oct | 341121300732 |
9 | 86002771263 |
10 | 30220321242 |
11 | 118a8646701 |
12 | 5a348839b6 |
13 | 2b07c15ab7 |
14 | 16697da866 |
15 | bbd1493cc |
hex | 7094581da |
30220321242 has 16 divisors (see below), whose sum is σ = 60442564320. Its totient is φ = 10073120112.
The previous prime is 30220321193. The next prime is 30220321249. The reversal of 30220321242 is 24212302203.
It is not an unprimeable number, because it can be changed into a prime (30220321249) 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, 199353 + ... + 316515.
It is an arithmetic number, because the mean of its divisors is an integer number (3777660270).
Almost surely, 230220321242 is an apocalyptic number.
30220321242 is an abundant number, since it is smaller than the sum of its proper divisors (30222243078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30220321242 is a wasteful number, since it uses less digits than its factorization.
30220321242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160157.
The product of its (nonzero) digits is 1152, while the sum is 21.
Adding to 30220321242 its reverse (24212302203), we get a palindrome (54432623445).
The spelling of 30220321242 in words is "thirty billion, two hundred twenty million, three hundred twenty-one thousand, two hundred forty-two".
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