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14443997 = 16786491
BaseRepresentation
bin110111000110…
…010111011101
31000011211102212
4313012113131
512144201442
61233330205
7233525531
oct67062735
930154385
1014443997
118175a97
124a06965
132cb9559
141cbdbc1
151404a82
hexdc65dd

14443997 has 4 divisors (see below), whose sum is σ = 14530656. Its totient is φ = 14357340.

The previous prime is 14443987. The next prime is 14444057. The reversal of 14443997 is 79934441.

14443997 is nontrivially palindromic in base 14.

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: 79934441 = 531508197.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14443997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14443937) 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, 43079 + ... + 43412.

It is an arithmetic number, because the mean of its divisors is an integer number (3632664).

Almost surely, 214443997 is an apocalyptic number.

It is an amenable number.

14443997 is a deficient number, since it is larger than the sum of its proper divisors (86659).

14443997 is an equidigital number, since it uses as much as digits as its factorization.

14443997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86658.

The product of its digits is 108864, while the sum is 41.

The square root of 14443997 is about 3800.5258846639. The cubic root of 14443997 is about 243.5356044223.

The spelling of 14443997 in words is "fourteen million, four hundred forty-three thousand, nine hundred ninety-seven".

Divisors: 1 167 86491 14443997