Base | Representation |
---|---|
bin | 11011111101100010… |
… | …010000101001011001 |
3 | 2212111101100210021020 |
4 | 123331202100221121 |
5 | 442441443424010 |
6 | 21443110033053 |
7 | 2112002602131 |
oct | 337542205131 |
9 | 85441323236 |
10 | 30023420505 |
11 | 11807490221 |
12 | 599a948789 |
13 | 2aa61a53a0 |
14 | 164b5c3ac1 |
15 | baac03470 |
hex | 6fd890a59 |
30023420505 has 32 divisors (see below), whose sum is σ = 52216182144. Its totient is φ = 14642612736.
The previous prime is 30023420477. The next prime is 30023420519. The reversal of 30023420505 is 50502432003.
It is not a de Polignac number, because 30023420505 - 25 = 30023420473 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 698604 + ... + 740333.
It is an arithmetic number, because the mean of its divisors is an integer number (1631755692).
Almost surely, 230023420505 is an apocalyptic number.
It is an amenable number.
30023420505 is a deficient number, since it is larger than the sum of its proper divisors (22192761639).
30023420505 is a wasteful number, since it uses less digits than its factorization.
30023420505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1439065.
The product of its (nonzero) digits is 3600, while the sum is 24.
Adding to 30023420505 its reverse (50502432003), we get a palindrome (80525852508).
The spelling of 30023420505 in words is "thirty billion, twenty-three million, four hundred twenty thousand, five hundred five".
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