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489193 = 1925747
BaseRepresentation
bin1110111011011101001
3220212001021
41313123221
5111123233
614252441
74105135
oct1673351
9825037
10489193
113045a1
121b7121
13141883
14ca3c5
1599e2d
hex776e9

489193 has 4 divisors (see below), whose sum is σ = 514960. Its totient is φ = 463428.

The previous prime is 489191. The next prime is 489197. The reversal of 489193 is 391984.

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 489193 - 21 = 489191 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489191) 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, 12855 + ... + 12892.

It is an arithmetic number, because the mean of its divisors is an integer number (128740).

2489193 is an apocalyptic number.

It is an amenable number.

489193 is a deficient number, since it is larger than the sum of its proper divisors (25767).

489193 is a wasteful number, since it uses less digits than its factorization.

489193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25766.

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

The square root of 489193 is about 699.4233338973. The cubic root of 489193 is about 78.7940477523.

The spelling of 489193 in words is "four hundred eighty-nine thousand, one hundred ninety-three".

Divisors: 1 19 25747 489193