Base | Representation |
---|---|
bin | 10010110101111000… |
… | …010010100011001001 |
3 | 1221012221202121000100 |
4 | 102311320102203021 |
5 | 312413203120241 |
6 | 13143311000013 |
7 | 1314231136530 |
oct | 226570224311 |
9 | 57187677010 |
10 | 20231301321 |
11 | 8642051140 |
12 | 3b07509009 |
13 | 1ba55a131a |
14 | d9ccd5317 |
15 | 7d62099b6 |
hex | 4b5e128c9 |
20231301321 has 48 divisors (see below), whose sum is σ = 36768251520. Its totient is φ = 10413308160.
The previous prime is 20231301283. The next prime is 20231301329. The reversal of 20231301321 is 12310313202.
20231301321 is a `hidden beast` number, since 20 + 23 + 1 + 301 + 321 = 666.
It is not a de Polignac number, because 20231301321 - 26 = 20231301257 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 20231301294 and 20231301303.
It is not an unprimeable number, because it can be changed into a prime (20231301329) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58380 + ... + 209453.
It is an arithmetic number, because the mean of its divisors is an integer number (766005240).
Almost surely, 220231301321 is an apocalyptic number.
20231301321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
20231301321 is a deficient number, since it is larger than the sum of its proper divisors (16536950199).
20231301321 is a wasteful number, since it uses less digits than its factorization.
20231301321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267966 (or 267963 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 20231301321 its reverse (12310313202), we get a palindrome (32541614523).
The spelling of 20231301321 in words is "twenty billion, two hundred thirty-one million, three hundred one thousand, three hundred twenty-one".
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