Base | Representation |
---|---|
bin | 101100101101… |
… | …1101111000101 |
3 | 1122010002200220 |
4 | 1121123233011 |
5 | 22000210141 |
6 | 2154254553 |
7 | 403163040 |
oct | 131335705 |
9 | 48102626 |
10 | 23444421 |
11 | 12263160 |
12 | 7a27459 |
13 | 4b1b150 |
14 | 3183c57 |
15 | 20d1766 |
hex | 165bbc5 |
23444421 has 64 divisors (see below), whose sum is σ = 43309056. Its totient is φ = 10886400.
The previous prime is 23444419. The next prime is 23444431. The reversal of 23444421 is 12444432.
It is a happy number.
It is not a de Polignac number, because 23444421 - 21 = 23444419 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 23444391 and 23444400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23444431) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111006 + ... + 111216.
It is an arithmetic number, because the mean of its divisors is an integer number (676704).
Almost surely, 223444421 is an apocalyptic number.
23444421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
23444421 is a deficient number, since it is larger than the sum of its proper divisors (19864635).
23444421 is a wasteful number, since it uses less digits than its factorization.
23444421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 282.
The product of its digits is 3072, while the sum is 24.
The square root of 23444421 is about 4841.9439278042. The cubic root of 23444421 is about 286.2067269941.
Adding to 23444421 its reverse (12444432), we get a palindrome (35888853).
It can be divided in two parts, 23 and 444421, that added together give a palindrome (444444).
The spelling of 23444421 in words is "twenty-three million, four hundred forty-four thousand, four hundred twenty-one".
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