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14408641 = 131108357
BaseRepresentation
bin110110111101…
…101111000001
31000010000221101
4312331233001
512142034031
61232454401
7233320462
oct66755701
930100841
1014408641
118151475
1249aa401
132ca6430
141cb0d69
1513e9361
hexdbdbc1

14408641 has 4 divisors (see below), whose sum is σ = 15517012. Its totient is φ = 13300272.

The previous prime is 14408629. The next prime is 14408657. The reversal of 14408641 is 14680441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4928400 + 9480241 = 2220^2 + 3079^2 .

It is a cyclic number.

It is not a de Polignac number, because 14408641 - 25 = 14408609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14478641) 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, 554166 + ... + 554191.

It is an arithmetic number, because the mean of its divisors is an integer number (3879253).

Almost surely, 214408641 is an apocalyptic number.

It is an amenable number.

14408641 is a deficient number, since it is larger than the sum of its proper divisors (1108371).

14408641 is a wasteful number, since it uses less digits than its factorization.

14408641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108370.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 14408641 is about 3795.8715731700. The cubic root of 14408641 is about 243.3367333400.

The spelling of 14408641 in words is "fourteen million, four hundred eight thousand, six hundred forty-one".

Divisors: 1 13 1108357 14408641