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14407691 = 21316761
BaseRepresentation
bin110110111101…
…100000001011
31000002222122012
4312331200023
512142021231
61232450135
7233314634
oct66754013
930088565
1014407691
118150791
1249a994b
132ca5b7c
141cb088b
1513e8e2b
hexdbd80b

14407691 has 4 divisors (see below), whose sum is σ = 14416584. Its totient is φ = 14398800.

The previous prime is 14407669. The next prime is 14407699. The reversal of 14407691 is 19670441.

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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14407691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14407699) 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, 1250 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (3604146).

Almost surely, 214407691 is an apocalyptic number.

14407691 is a deficient number, since it is larger than the sum of its proper divisors (8893).

14407691 is an equidigital number, since it uses as much as digits as its factorization.

14407691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 14407691 is about 3795.7464351561. The cubic root of 14407691 is about 243.3313852766.

The spelling of 14407691 in words is "fourteen million, four hundred seven thousand, six hundred ninety-one".

Divisors: 1 2131 6761 14407691