Base | Representation |
---|---|
bin | 111001011010… |
… | …1100100100101 |
3 | 2002122102201020 |
4 | 1302311210211 |
5 | 30201310340 |
6 | 2553121353 |
7 | 513610212 |
oct | 162654445 |
9 | 62572636 |
10 | 30103845 |
11 | 15aa1512 |
12 | a0b9259 |
13 | 6310335 |
14 | 3dd8b09 |
15 | 29999d0 |
hex | 1cb5925 |
30103845 has 8 divisors (see below), whose sum is σ = 48166176. Its totient is φ = 16055376.
The previous prime is 30103831. The next prime is 30103877. The reversal of 30103845 is 54830103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30103845 - 28 = 30103589 is a prime.
It is a congruent number.
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, 1003447 + ... + 1003476.
It is an arithmetic number, because the mean of its divisors is an integer number (6020772).
Almost surely, 230103845 is an apocalyptic number.
It is an amenable number.
30103845 is a deficient number, since it is larger than the sum of its proper divisors (18062331).
30103845 is a wasteful number, since it uses less digits than its factorization.
30103845 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2006931.
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 30103845 is about 5486.6970938808. The cubic root of 30103845 is about 311.0813605574.
Adding to 30103845 its reverse (54830103), we get a palindrome (84933948).
The spelling of 30103845 in words is "thirty million, one hundred three thousand, eight hundred forty-five".
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