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13412443 = 111219313
BaseRepresentation
bin110011001010…
…100001011011
3221020102102011
4303022201123
511413144233
61155250351
7222001222
oct63124133
927212364
1013412443
117630a70
1245a99b7
132a17b75
141ad1cb9
15129e0cd
hexcca85b

13412443 has 4 divisors (see below), whose sum is σ = 14631768. Its totient is φ = 12193120.

The previous prime is 13412407. The next prime is 13412447. The reversal of 13412443 is 34421431.

13412443 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34421431 = 113129221.

It is a cyclic number.

It is not a de Polignac number, because 13412443 - 217 = 13281371 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13412447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609646 + ... + 609667.

It is an arithmetic number, because the mean of its divisors is an integer number (3657942).

Almost surely, 213412443 is an apocalyptic number.

13412443 is a deficient number, since it is larger than the sum of its proper divisors (1219325).

13412443 is a wasteful number, since it uses less digits than its factorization.

13412443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219324.

The product of its digits is 1152, while the sum is 22.

The square root of 13412443 is about 3662.3002334598. The cubic root of 13412443 is about 237.5942702405.

Adding to 13412443 its reverse (34421431), we get a palindrome (47833874).

The spelling of 13412443 in words is "thirteen million, four hundred twelve thousand, four hundred forty-three".

Divisors: 1 11 1219313 13412443