Base | Representation |
---|---|
bin | 10101011011100111… |
… | …111111011010101001 |
3 | 2012101202020002021201 |
4 | 111123213333122221 |
5 | 334112040442010 |
6 | 14323244004201 |
7 | 1443155111410 |
oct | 253347773251 |
9 | 65352202251 |
10 | 23012046505 |
11 | 9839778158 |
12 | 4562830661 |
13 | 2229719386 |
14 | 1184346477 |
15 | 8ea3de23a |
hex | 55b9ff6a9 |
23012046505 has 16 divisors (see below), whose sum is σ = 32647633920. Its totient is φ = 15235561152.
The previous prime is 23012046467. The next prime is 23012046557. The reversal of 23012046505 is 50564021032.
It is not a de Polignac number, because 23012046505 - 225 = 22978492073 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11334969 + ... + 11336998.
It is an arithmetic number, because the mean of its divisors is an integer number (2040477120).
Almost surely, 223012046505 is an apocalyptic number.
It is an amenable number.
23012046505 is a deficient number, since it is larger than the sum of its proper divisors (9635587415).
23012046505 is a wasteful number, since it uses less digits than its factorization.
23012046505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22672008.
The product of its (nonzero) digits is 7200, while the sum is 28.
Adding to 23012046505 its reverse (50564021032), we get a palindrome (73576067537).
The spelling of 23012046505 in words is "twenty-three billion, twelve million, forty-six thousand, five hundred five".
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