Base | Representation |
---|---|
bin | 11100001010101000… |
… | …101100110010011101 |
3 | 2220001200221101010110 |
4 | 130022220230302131 |
5 | 443414230244240 |
6 | 21521001000233 |
7 | 2120312031015 |
oct | 341250546235 |
9 | 86050841113 |
10 | 30243212445 |
11 | 1190a561156 |
12 | 5a40483079 |
13 | 2b0c89c1a4 |
14 | 166c878c45 |
15 | bc016bc80 |
hex | 70aa2cc9d |
30243212445 has 16 divisors (see below), whose sum is σ = 48391342272. Its totient is φ = 16128979200.
The previous prime is 30243212443. The next prime is 30243212453. The reversal of 30243212445 is 54421234203.
It is not a de Polignac number, because 30243212445 - 21 = 30243212443 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30243212443) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519109 + ... + 574421.
It is an arithmetic number, because the mean of its divisors is an integer number (3024458892).
Almost surely, 230243212445 is an apocalyptic number.
It is an amenable number.
30243212445 is a deficient number, since it is larger than the sum of its proper divisors (18148129827).
30243212445 is a wasteful number, since it uses less digits than its factorization.
30243212445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 91772.
The product of its (nonzero) digits is 23040, while the sum is 30.
Adding to 30243212445 its reverse (54421234203), we get a palindrome (84664446648).
The spelling of 30243212445 in words is "thirty billion, two hundred forty-three million, two hundred twelve thousand, four hundred forty-five".
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