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14066749 = 137102677
BaseRepresentation
bin110101101010…
…010000111101
3222110122221201
4311222100331
512100113444
61221255501
7230364634
oct65522075
928418851
1014066749
117a38614
124864591
132bb6928
141c2251b
15137cdd4
hexd6a43d

14066749 has 4 divisors (see below), whose sum is σ = 14169564. Its totient is φ = 13963936.

The previous prime is 14066747. The next prime is 14066753. The reversal of 14066749 is 94766041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94766041 = 175574473.

It can be written as a sum of positive squares in 2 ways, for example, as 6125625 + 7941124 = 2475^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 14066749 - 21 = 14066747 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 (14066747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51202 + ... + 51475.

It is an arithmetic number, because the mean of its divisors is an integer number (3542391).

Almost surely, 214066749 is an apocalyptic number.

It is an amenable number.

14066749 is a deficient number, since it is larger than the sum of its proper divisors (102815).

14066749 is a wasteful number, since it uses less digits than its factorization.

14066749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102814.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 14066749 is about 3750.5664905451. The cubic root of 14066749 is about 241.3966540109.

The spelling of 14066749 in words is "fourteen million, sixty-six thousand, seven hundred forty-nine".

Divisors: 1 137 102677 14066749