Base | Representation |
---|---|
bin | 111001011010… |
… | …1011011001011 |
3 | 2002122101212221 |
4 | 1302311123023 |
5 | 30201300433 |
6 | 2553114511 |
7 | 513605362 |
oct | 162653313 |
9 | 62571787 |
10 | 30103243 |
11 | 15aa1015 |
12 | a0b8a37 |
13 | 630cc91 |
14 | 3dd87d9 |
15 | 299972d |
hex | 1cb56cb |
30103243 has 8 divisors (see below), whose sum is σ = 31999968. Its totient is φ = 28220544.
The previous prime is 30103231. The next prime is 30103259. The reversal of 30103243 is 34230103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-30103243 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30103643) 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, 1105 + ... + 7837.
It is an arithmetic number, because the mean of its divisors is an integer number (3999996).
Almost surely, 230103243 is an apocalyptic number.
30103243 is a deficient number, since it is larger than the sum of its proper divisors (1896725).
30103243 is a wasteful number, since it uses less digits than its factorization.
30103243 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7013.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 30103243 is about 5486.6422336435. The cubic root of 30103243 is about 311.0792869328.
Adding to 30103243 its reverse (34230103), we get a palindrome (64333346).
The spelling of 30103243 in words is "thirty million, one hundred three thousand, two hundred forty-three".
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