Base | Representation |
---|---|
bin | 11100001010101000… |
… | …101100111011110011 |
3 | 2220001200221101221121 |
4 | 130022220230323303 |
5 | 443414230304133 |
6 | 21521001003111 |
7 | 2120312032531 |
oct | 341250547363 |
9 | 86050841847 |
10 | 30243213043 |
11 | 1190a56164a |
12 | 5a40483497 |
13 | 2b0c89c544 |
14 | 166c879151 |
15 | bc016c02d |
hex | 70aa2cef3 |
30243213043 has 4 divisors (see below), whose sum is σ = 30245551200. Its totient is φ = 30240874888.
The previous prime is 30243213041. The next prime is 30243213047. The reversal of 30243213043 is 34031234203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34031234203 = 7883 ⋅4317041.
It is a cyclic number.
It is not a de Polignac number, because 30243213043 - 21 = 30243213041 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30243212999 and 30243213017.
It is not an unprimeable number, because it can be changed into a prime (30243213041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149568 + ... + 1175581.
It is an arithmetic number, because the mean of its divisors is an integer number (7561387800).
Almost surely, 230243213043 is an apocalyptic number.
30243213043 is a deficient number, since it is larger than the sum of its proper divisors (2338157).
30243213043 is a wasteful number, since it uses less digits than its factorization.
30243213043 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2338156.
The product of its (nonzero) digits is 5184, while the sum is 25.
Adding to 30243213043 its reverse (34031234203), we get a palindrome (64274447246).
The spelling of 30243213043 in words is "thirty billion, two hundred forty-three million, two hundred thirteen thousand, forty-three".
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