Base | Representation |
---|---|
bin | 111001010011… |
… | …0100011011010 |
3 | 2002112022022220 |
4 | 1302212203122 |
5 | 30142323310 |
6 | 2551524510 |
7 | 513232653 |
oct | 162464332 |
9 | 62468286 |
10 | 30042330 |
11 | 15a5a27a |
12 | a089736 |
13 | 62bb336 |
14 | 3dc052a |
15 | 2986670 |
hex | 1ca68da |
30042330 has 16 divisors (see below), whose sum is σ = 72101664. Its totient is φ = 8011280.
The previous prime is 30042323. The next prime is 30042343. The reversal of 30042330 is 3324003.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500676 + ... + 500735.
It is an arithmetic number, because the mean of its divisors is an integer number (4506354).
Almost surely, 230042330 is an apocalyptic number.
30042330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30042330 is an abundant number, since it is smaller than the sum of its proper divisors (42059334).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30042330 is a wasteful number, since it uses less digits than its factorization.
30042330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1001421.
The product of its (nonzero) digits is 216, while the sum is 15.
The square root of 30042330 is about 5481.0883955652. The cubic root of 30042330 is about 310.8693254153.
Adding to 30042330 its reverse (3324003), we get a palindrome (33366333).
The spelling of 30042330 in words is "thirty million, forty-two thousand, three hundred thirty".
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