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14444431 = 43335917
BaseRepresentation
bin110111000110…
…011110001111
31000011212000221
4313012132033
512144210211
61233332211
7233530021
oct67063617
930155027
1014444431
118176351
124a07067
132cb9801
141cc0011
151404c71
hexdc678f

14444431 has 4 divisors (see below), whose sum is σ = 14780392. Its totient is φ = 14108472.

The previous prime is 14444429. The next prime is 14444459. The reversal of 14444431 is 13444441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13444441 = 25752313.

It is not a de Polignac number, because 14444431 - 21 = 14444429 is a prime.

It is a super-2 number, since 2×144444312 = 417283173827522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14444396 and 14444405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14444401) 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, 167916 + ... + 168001.

It is an arithmetic number, because the mean of its divisors is an integer number (3695098).

Almost surely, 214444431 is an apocalyptic number.

14444431 is a deficient number, since it is larger than the sum of its proper divisors (335961).

14444431 is an equidigital number, since it uses as much as digits as its factorization.

14444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335960.

The product of its digits is 3072, while the sum is 25.

The square root of 14444431 is about 3800.5829815964. The cubic root of 14444431 is about 243.5380435761.

Adding to 14444431 its reverse (13444441), we get a palindrome (27888872).

The spelling of 14444431 in words is "fourteen million, four hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 43 335917 14444431