Base | Representation |
---|---|
bin | 11100010000101101… |
… | …100001111111000111 |
3 | 2220022210201221111010 |
4 | 130100231201333013 |
5 | 444121324022330 |
6 | 21535041413303 |
7 | 2122660311243 |
oct | 342055417707 |
9 | 86283657433 |
10 | 30345142215 |
11 | 11962050533 |
12 | 5a6a63a233 |
13 | 2b27a3a16b |
14 | 167c20d423 |
15 | bc90a33b0 |
hex | 710b61fc7 |
30345142215 has 16 divisors (see below), whose sum is σ = 48567024000. Its totient is φ = 16179143712.
The previous prime is 30345142151. The next prime is 30345142229. The reversal of 30345142215 is 51224154303.
It is not a de Polignac number, because 30345142215 - 26 = 30345142151 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 (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257125 + ... + 356094.
It is an arithmetic number, because the mean of its divisors is an integer number (3035439000).
Almost surely, 230345142215 is an apocalyptic number.
30345142215 is a deficient number, since it is larger than the sum of its proper divisors (18221881785).
30345142215 is a wasteful number, since it uses less digits than its factorization.
30345142215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 616526.
The product of its (nonzero) digits is 14400, while the sum is 30.
Adding to 30345142215 its reverse (51224154303), we get a palindrome (81569296518).
The spelling of 30345142215 in words is "thirty billion, three hundred forty-five million, one hundred forty-two thousand, two hundred fifteen".
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