Base | Representation |
---|---|
bin | 111001010011… |
… | …0100011111001 |
3 | 2002112022101001 |
4 | 1302212203321 |
5 | 30142323421 |
6 | 2551525001 |
7 | 513233026 |
oct | 162464371 |
9 | 62468331 |
10 | 30042361 |
11 | 15a5a2a8 |
12 | a089761 |
13 | 62bb35b |
14 | 3dc054d |
15 | 2986691 |
hex | 1ca68f9 |
30042361 has 8 divisors (see below), whose sum is σ = 30849984. Its totient is φ = 29243760.
The previous prime is 30042359. The next prime is 30042373. The reversal of 30042361 is 16324003.
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 30042361 - 21 = 30042359 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30042461) 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, 4780 + ... + 9106.
It is an arithmetic number, because the mean of its divisors is an integer number (3856248).
Almost surely, 230042361 is an apocalyptic number.
It is an amenable number.
30042361 is a deficient number, since it is larger than the sum of its proper divisors (807623).
30042361 is a wasteful number, since it uses less digits than its factorization.
30042361 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4511.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 30042361 is about 5481.0912234700. The cubic root of 30042361 is about 310.8694323416.
Adding to 30042361 its reverse (16324003), we get a palindrome (46366364).
It can be divided in two parts, 30042 and 361, that added together give a palindrome (30403).
The spelling of 30042361 in words is "thirty million, forty-two thousand, three hundred sixty-one".
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