Base | Representation |
---|---|
bin | 1001001010110101111000… |
… | …00001100110010110000010 |
3 | 2122101122010002021021100101 |
4 | 10211122330001212112002 |
5 | 10120330310120220414 |
6 | 110515031250113014 |
7 | 4150532023531561 |
oct | 445327401462602 |
9 | 78348102237311 |
10 | 20163731023234 |
11 | 647443254a177 |
12 | 2317a4887b76a |
13 | b3357c516bc6 |
14 | 4d9d034a9bd8 |
15 | 24e789166a74 |
hex | 1256bc066582 |
20163731023234 has 64 divisors (see below), whose sum is σ = 31347323892864. Its totient is φ = 9722592000000.
The previous prime is 20163731023231. The next prime is 20163731023279. The reversal of 20163731023234 is 43232013736102.
It is a junction number, because it is equal to n+sod(n) for n = 20163731023193 and 20163731023202.
It is not an unprimeable number, because it can be changed into a prime (20163731023231) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 3818162674 + ... + 3818167954.
It is an arithmetic number, because the mean of its divisors is an integer number (489801935826).
Almost surely, 220163731023234 is an apocalyptic number.
20163731023234 is a deficient number, since it is larger than the sum of its proper divisors (11183592869630).
20163731023234 is a wasteful number, since it uses less digits than its factorization.
20163731023234 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7523.
The product of its (nonzero) digits is 108864, while the sum is 37.
Adding to 20163731023234 its reverse (43232013736102), we get a palindrome (63395744759336).
The spelling of 20163731023234 in words is "twenty trillion, one hundred sixty-three billion, seven hundred thirty-one million, twenty-three thousand, two hundred thirty-four".
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