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14443021 = 19857887
BaseRepresentation
bin110111000110…
…001000001101
31000011210002201
4313012020031
512144134041
61233321501
7233522635
oct67061015
930153081
1014443021
11817528a
124a06291
132cb8c88
141cbd6c5
151404631
hexdc620d

14443021 has 8 divisors (see below), whose sum is σ = 15238080. Its totient is φ = 13651488.

The previous prime is 14443007. The next prime is 14443027. The reversal of 14443021 is 12034441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14443021 - 29 = 14442509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14443021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14443027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15840 + ... + 16726.

It is an arithmetic number, because the mean of its divisors is an integer number (1904760).

Almost surely, 214443021 is an apocalyptic number.

It is an amenable number.

14443021 is a deficient number, since it is larger than the sum of its proper divisors (795059).

14443021 is an equidigital number, since it uses as much as digits as its factorization.

14443021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 14443021 is about 3800.3974792119. The cubic root of 14443021 is about 243.5301189576.

Adding to 14443021 its reverse (12034441), we get a palindrome (26477462).

It can be divided in two parts, 1444 and 3021, that added together give a triangular number (4465 = T94).

The spelling of 14443021 in words is "fourteen million, four hundred forty-three thousand, twenty-one".

Divisors: 1 19 857 887 16283 16853 760159 14443021