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12433441 = 81115331
BaseRepresentation
bin101111011011…
…100000100001
3212101200110211
4233123200201
511140332231
61122254121
7210453046
oct57334041
925350424
1012433441
117022479
1241b7341
132764387
1419191cd
151158eb1
hexbdb821

12433441 has 4 divisors (see below), whose sum is σ = 12449584. Its totient is φ = 12417300.

The previous prime is 12433423. The next prime is 12433453. The reversal of 12433441 is 14433421.

12433441 is digitally balanced in base 2, because in such base 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14433421 = 64322447.

It is a cyclic number.

It is not a de Polignac number, because 12433441 - 27 = 12433313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12433481) 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, 6855 + ... + 8476.

It is an arithmetic number, because the mean of its divisors is an integer number (3112396).

Almost surely, 212433441 is an apocalyptic number.

It is an amenable number.

12433441 is a deficient number, since it is larger than the sum of its proper divisors (16143).

12433441 is an equidigital number, since it uses as much as digits as its factorization.

12433441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16142.

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

The square root of 12433441 is about 3526.1084781952. The cubic root of 12433441 is about 231.6667890435. Note that the first 3 decimals are identical.

Adding to 12433441 its reverse (14433421), we get a palindrome (26866862).

The spelling of 12433441 in words is "twelve million, four hundred thirty-three thousand, four hundred forty-one".

Divisors: 1 811 15331 12433441