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14891449 = 68321803
BaseRepresentation
bin111000110011…
…100110111001
31001000120020011
4320303212321
512303011244
61251101521
7240401206
oct70634671
931016204
1014891449
118451191
124ba18a1
133115111
141d98cad
151492434
hexe339b9

14891449 has 4 divisors (see below), whose sum is σ = 14913936. Its totient is φ = 14868964.

The previous prime is 14891441. The next prime is 14891453. The reversal of 14891449 is 94419841.

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: 94419841 = 383246527.

It is a cyclic number.

It is not a de Polignac number, because 14891449 - 23 = 14891441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14891441) 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, 10219 + ... + 11584.

It is an arithmetic number, because the mean of its divisors is an integer number (3728484).

Almost surely, 214891449 is an apocalyptic number.

It is an amenable number.

14891449 is a deficient number, since it is larger than the sum of its proper divisors (22487).

14891449 is an equidigital number, since it uses as much as digits as its factorization.

14891449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22486.

The product of its digits is 41472, while the sum is 40.

The square root of 14891449 is about 3858.9440265440. The cubic root of 14891449 is about 246.0248559281.

The spelling of 14891449 in words is "fourteen million, eight hundred ninety-one thousand, four hundred forty-nine".

Divisors: 1 683 21803 14891449