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196489 = 238543
BaseRepresentation
bin101111111110001001
3100222112101
4233332021
522241424
64113401
71445566
oct577611
9328471
10196489
11124697
1295861
136b587
145186d
153d344
hex2ff89

196489 has 4 divisors (see below), whose sum is σ = 205056. Its totient is φ = 187924.

The previous prime is 196477. The next prime is 196499. The reversal of 196489 is 984691.

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: 984691 = 1757923.

It is a cyclic number.

It is not a de Polignac number, because 196489 - 29 = 195977 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (196429) 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, 4249 + ... + 4294.

It is an arithmetic number, because the mean of its divisors is an integer number (51264).

2196489 is an apocalyptic number.

It is an amenable number.

196489 is a deficient number, since it is larger than the sum of its proper divisors (8567).

196489 is an equidigital number, since it uses as much as digits as its factorization.

196489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8566.

The product of its digits is 15552, while the sum is 37.

The square root of 196489 is about 443.2707975944. The cubic root of 196489 is about 58.1361249758.

The spelling of 196489 in words is "one hundred ninety-six thousand, four hundred eighty-nine".

Divisors: 1 23 8543 196489