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214494289 = 331648019
BaseRepresentation
bin11001100100011…
…10110001010001
3112221121102211221
430302032301101
5414402304124
633141205041
75213112532
oct1462166121
9487542757
10214494289
11100092809
125ba00781
13355906c9
14206b6689
1513c6dce4
hexcc8ec51

214494289 has 4 divisors (see below), whose sum is σ = 215142640. Its totient is φ = 213845940.

The previous prime is 214494283. The next prime is 214494311. The reversal of 214494289 is 982494412.

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.

It is a cyclic number.

It is not a de Polignac number, because 214494289 - 23 = 214494281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214494281) 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, 323679 + ... + 324340.

It is an arithmetic number, because the mean of its divisors is an integer number (53785660).

Almost surely, 2214494289 is an apocalyptic number.

It is an amenable number.

214494289 is a deficient number, since it is larger than the sum of its proper divisors (648351).

214494289 is an equidigital number, since it uses as much as digits as its factorization.

214494289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648350.

The product of its digits is 165888, while the sum is 43.

The square root of 214494289 is about 14645.6235442538. The cubic root of 214494289 is about 598.6025709952.

The spelling of 214494289 in words is "two hundred fourteen million, four hundred ninety-four thousand, two hundred eighty-nine".

Divisors: 1 331 648019 214494289