Base | Representation |
---|---|
bin | 101100101111… |
… | …0001001110001 |
3 | 1122010121021120 |
4 | 1121132021301 |
5 | 22001014241 |
6 | 2154412453 |
7 | 403233642 |
oct | 131361161 |
9 | 48117246 |
10 | 23454321 |
11 | 1226a640 |
12 | 7a31129 |
13 | 4b227c7 |
14 | 31876c9 |
15 | 20d4666 |
hex | 165e271 |
23454321 has 32 divisors (see below), whose sum is σ = 35721216. Its totient is φ = 13560000.
The previous prime is 23454289. The next prime is 23454367. The reversal of 23454321 is 12345432.
23454321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is not a de Polignac number, because 23454321 - 25 = 23454289 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 23454291 and 23454300.
It is not an unprimeable number, because it can be changed into a prime (23454391) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103210 + ... + 103436.
It is an arithmetic number, because the mean of its divisors is an integer number (1116288).
Almost surely, 223454321 is an apocalyptic number.
It is an amenable number.
23454321 is a deficient number, since it is larger than the sum of its proper divisors (12266895).
23454321 is a wasteful number, since it uses less digits than its factorization.
23454321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 373.
The product of its digits is 2880, while the sum is 24.
The square root of 23454321 is about 4842.9661365737. The cubic root of 23454321 is about 286.2470073357.
Adding to 23454321 its reverse (12345432), we get a palindrome (35799753).
Subtracting from 23454321 its reverse (12345432), we obtain a square (11108889 = 33332).
It can be divided in two parts, 2345 and 4321, that added together give a palindrome (6666).
The spelling of 23454321 in words is "twenty-three million, four hundred fifty-four thousand, three hundred twenty-one".
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