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194893 = 792467
BaseRepresentation
bin101111100101001101
3100220100021
4233211031
522214033
64102141
71441126
oct574515
9326307
10194893
11123476
1294951
136a92a
145104d
153cb2d
hex2f94d

194893 has 4 divisors (see below), whose sum is σ = 197440. Its totient is φ = 192348.

The previous prime is 194891. The next prime is 194899. The reversal of 194893 is 398491.

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 194893 - 21 = 194891 is a prime.

It is a Duffinian number.

194893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155 + ... + 1312.

It is an arithmetic number, because the mean of its divisors is an integer number (49360).

2194893 is an apocalyptic number.

It is an amenable number.

194893 is a deficient number, since it is larger than the sum of its proper divisors (2547).

194893 is an equidigital number, since it uses as much as digits as its factorization.

194893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546.

The product of its digits is 7776, while the sum is 34.

The square root of 194893 is about 441.4668730494. The cubic root of 194893 is about 57.9782915192.

The spelling of 194893 in words is "one hundred ninety-four thousand, eight hundred ninety-three".

Divisors: 1 79 2467 194893