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14391893 = 16786179
BaseRepresentation
bin110110111001…
…101001010101
31000002011222002
4312321221111
512141020033
61232245045
7233220605
oct66715125
930064862
1014391893
11813a92a
1249a0785
132c9b919
141ca8c05
1513e43e8
hexdb9a55

14391893 has 4 divisors (see below), whose sum is σ = 14478240. Its totient is φ = 14305548.

The previous prime is 14391889. The next prime is 14391907. The reversal of 14391893 is 39819341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39819341 = 41779533.

It is a cyclic number.

It is not a de Polignac number, because 14391893 - 22 = 14391889 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 (14391803) 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, 42923 + ... + 43256.

It is an arithmetic number, because the mean of its divisors is an integer number (3619560).

Almost surely, 214391893 is an apocalyptic number.

It is an amenable number.

14391893 is a deficient number, since it is larger than the sum of its proper divisors (86347).

14391893 is an equidigital number, since it uses as much as digits as its factorization.

14391893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86346.

The product of its digits is 23328, while the sum is 38.

The square root of 14391893 is about 3793.6648507742. The cubic root of 14391893 is about 243.2424153157.

The spelling of 14391893 in words is "fourteen million, three hundred ninety-one thousand, eight hundred ninety-three".

Divisors: 1 167 86179 14391893