Base | Representation |
---|---|
bin | 110010000100… |
… | …010011101101 |
3 | 220200210220101 |
4 | 302010103231 |
5 | 11324443340 |
6 | 1145151101 |
7 | 216362566 |
oct | 62042355 |
9 | 26623811 |
10 | 13124845 |
11 | 7454988 |
12 | 448b491 |
13 | 2946ca6 |
14 | 1a5916d |
15 | 1243c9a |
hex | c844ed |
13124845 has 8 divisors (see below), whose sum is σ = 16017120. Its totient is φ = 10321680.
The previous prime is 13124827. The next prime is 13124851. The reversal of 13124845 is 54842131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13124845 - 27 = 13124717 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21951 + ... + 22540.
It is an arithmetic number, because the mean of its divisors is an integer number (2002140).
Almost surely, 213124845 is an apocalyptic number.
It is an amenable number.
13124845 is a deficient number, since it is larger than the sum of its proper divisors (2892275).
13124845 is an equidigital number, since it uses as much as digits as its factorization.
13124845 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44555.
The product of its digits is 3840, while the sum is 28.
The square root of 13124845 is about 3622.8227944519. The cubic root of 13124845 is about 235.8837704502.
Adding to 13124845 its reverse (54842131), we get a palindrome (67966976).
It can be divided in two parts, 131 and 24845, that added together give a triangular number (24976 = T223).
The spelling of 13124845 in words is "thirteen million, one hundred twenty-four thousand, eight hundred forty-five".
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