Base | Representation |
---|---|
bin | 1001001111001010011111… |
… | …11011010110011100111001 |
3 | 2122220211110000120001220200 |
4 | 10213211033323112130321 |
5 | 10130243432233120210 |
6 | 111111152000512413 |
7 | 4164340163213322 |
oct | 447451773263471 |
9 | 78824400501820 |
10 | 20312241301305 |
11 | 6521411748178 |
12 | 234079461b709 |
13 | b445892623a5 |
14 | 503191071449 |
15 | 25357c07c0c0 |
hex | 12794fed6739 |
20312241301305 has 24 divisors (see below), whose sum is σ = 35267864329152. Its totient is φ = 10814740158624.
The previous prime is 20312241301291. The next prime is 20312241301309. The reversal of 20312241301305 is 50310314221302.
20312241301305 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 224 + 130 + 1 + 305 = 666.
It is not a de Polignac number, because 20312241301305 - 211 = 20312241299257 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20312241301309) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384456669 + ... + 384509498.
It is an arithmetic number, because the mean of its divisors is an integer number (1469494347048).
Almost surely, 220312241301305 is an apocalyptic number.
It is an amenable number.
20312241301305 is a deficient number, since it is larger than the sum of its proper divisors (14955623027847).
20312241301305 is a wasteful number, since it uses less digits than its factorization.
20312241301305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 768966765 (or 768966762 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
Adding to 20312241301305 its reverse (50310314221302), we get a palindrome (70622555522607).
The spelling of 20312241301305 in words is "twenty trillion, three hundred twelve billion, two hundred forty-one million, three hundred one thousand, three hundred five".
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