Base | Representation |
---|---|
bin | 110001101011… |
… | …100011001110 |
3 | 220111122210120 |
4 | 301223203032 |
5 | 11313222223 |
6 | 1143045410 |
7 | 215461131 |
oct | 61534316 |
9 | 26448716 |
10 | 13023438 |
11 | 739577a |
12 | 4440866 |
13 | 290ca9c |
14 | 1a30218 |
15 | 1223be3 |
hex | c6b8ce |
13023438 has 8 divisors (see below), whose sum is σ = 26046888. Its totient is φ = 4341144.
The previous prime is 13023433. The next prime is 13023457. The reversal of 13023438 is 83432031.
It is a sphenic number, since it is the product of 3 distinct primes.
13023438 is an admirable number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13023433) 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 3 ways as a sum of consecutive naturals, for example, 1085281 + ... + 1085292.
It is an arithmetic number, because the mean of its divisors is an integer number (3255861).
Almost surely, 213023438 is an apocalyptic number.
13023438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13023438 is a wasteful number, since it uses less digits than its factorization.
13023438 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2170578.
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 13023438 is about 3608.8000775881. The cubic root of 13023438 is about 235.2746931195.
Adding to 13023438 its reverse (83432031), we get a palindrome (96455469).
The spelling of 13023438 in words is "thirteen million, twenty-three thousand, four hundred thirty-eight".
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