Base | Representation |
---|---|
bin | 101100101110… |
… | …1110111010111 |
3 | 1122010112122221 |
4 | 1121131313113 |
5 | 22001000033 |
6 | 2154403211 |
7 | 403230340 |
oct | 131356727 |
9 | 48115587 |
10 | 23453143 |
11 | 1226976a |
12 | 7a30507 |
13 | 4b220cc |
14 | 31870c7 |
15 | 20d412d |
hex | 165ddd7 |
23453143 has 8 divisors (see below), whose sum is σ = 27668480. Its totient is φ = 19454040.
The previous prime is 23453137. The next prime is 23453147. The reversal of 23453143 is 34135432.
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 23453143 - 213 = 23444951 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23453147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53823 + ... + 54256.
It is an arithmetic number, because the mean of its divisors is an integer number (3458560).
Almost surely, 223453143 is an apocalyptic number.
23453143 is a deficient number, since it is larger than the sum of its proper divisors (4215337).
23453143 is a wasteful number, since it uses less digits than its factorization.
23453143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108117.
The product of its digits is 4320, while the sum is 25.
The square root of 23453143 is about 4842.8445153649. The cubic root of 23453143 is about 286.2422149761.
Adding to 23453143 its reverse (34135432), we get a palindrome (57588575).
The spelling of 23453143 in words is "twenty-three million, four hundred fifty-three thousand, one hundred forty-three".
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