Base | Representation |
---|---|
bin | 10010110101110111… |
… | …111100010110110111 |
3 | 1221012221120222022202 |
4 | 102311313330112313 |
5 | 312413142213143 |
6 | 13143305015115 |
7 | 1314230310524 |
oct | 226567742667 |
9 | 57187528282 |
10 | 20231210423 |
11 | 8641a99916 |
12 | 3b0748449b |
13 | 1ba556bb38 |
14 | d9ccb014b |
15 | 7d61dcab8 |
hex | 4b5dfc5b7 |
20231210423 has 8 divisors (see below), whose sum is σ = 20312981760. Its totient is φ = 20149491960.
The previous prime is 20231210381. The next prime is 20231210459. The reversal of 20231210423 is 32401213202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20231210423 - 218 = 20230948279 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20231210395 and 20231210404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20231210473) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 871736 + ... + 894642.
It is an arithmetic number, because the mean of its divisors is an integer number (2539122720).
Almost surely, 220231210423 is an apocalyptic number.
20231210423 is a deficient number, since it is larger than the sum of its proper divisors (81771337).
20231210423 is a wasteful number, since it uses less digits than its factorization.
20231210423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26437.
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 20231210423 its reverse (32401213202), we get a palindrome (52632423625).
The spelling of 20231210423 in words is "twenty billion, two hundred thirty-one million, two hundred ten thousand, four hundred twenty-three".
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