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14069641 = 20816761
BaseRepresentation
bin110101101010…
…111110001001
3222110210220211
4311222332021
512100212031
61221321121
7230406235
oct65527611
928423824
1014069641
117a3a803
1248661a1
132bb8041
141c235c5
15137dbb1
hexd6af89

14069641 has 4 divisors (see below), whose sum is σ = 14078484. Its totient is φ = 14060800.

The previous prime is 14069639. The next prime is 14069647. The reversal of 14069641 is 14696041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8410000 + 5659641 = 2900^2 + 2379^2 .

It is a 3-Lehmer number, since φ(14069641) divides (14069641-1)3.

It is a cyclic number.

It is not a de Polignac number, because 14069641 - 21 = 14069639 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14069647) 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, 1300 + ... + 5461.

It is an arithmetic number, because the mean of its divisors is an integer number (3519621).

Almost surely, 214069641 is an apocalyptic number.

It is an amenable number.

14069641 is a deficient number, since it is larger than the sum of its proper divisors (8843).

14069641 is an equidigital number, since it uses as much as digits as its factorization.

14069641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8842.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 14069641 is about 3750.9520124896. The cubic root of 14069641 is about 241.4131958877.

The spelling of 14069641 in words is "fourteen million, sixty-nine thousand, six hundred forty-one".

Divisors: 1 2081 6761 14069641