Base | Representation |
---|---|
bin | 101111110101… |
… | …110111101111 |
3 | 212121011121011 |
4 | 233311313233 |
5 | 11202311143 |
6 | 1124450051 |
7 | 211412626 |
oct | 57656757 |
9 | 25534534 |
10 | 12541423 |
11 | 7096614 |
12 | 4249927 |
13 | 27a157b |
14 | 19466bd |
15 | 117ae9d |
hex | bf5def |
12541423 has 4 divisors (see below), whose sum is σ = 12833128. Its totient is φ = 12249720.
The previous prime is 12541411. The next prime is 12541439. The reversal of 12541423 is 32414521.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32414521 = 23 ⋅1409327.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12541423 is a prime.
It is a super-3 number, since 3×125414233 (a number of 22 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12541394 and 12541403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12541493) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145788 + ... + 145873.
It is an arithmetic number, because the mean of its divisors is an integer number (3208282).
Almost surely, 212541423 is an apocalyptic number.
12541423 is a deficient number, since it is larger than the sum of its proper divisors (291705).
12541423 is an equidigital number, since it uses as much as digits as its factorization.
12541423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 291704.
The product of its digits is 960, while the sum is 22.
The square root of 12541423 is about 3541.3871575980. The cubic root of 12541423 is about 232.3355170700.
Adding to 12541423 its reverse (32414521), we get a palindrome (44955944).
The spelling of 12541423 in words is "twelve million, five hundred forty-one thousand, four hundred twenty-three".
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