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196465 = 539293
BaseRepresentation
bin101111111101110001
3100222111111
4233331301
522241330
64113321
71445533
oct577561
9328444
10196465
11124675
1295841
136b569
1451853
153d32a
hex2ff71

196465 has 4 divisors (see below), whose sum is σ = 235764. Its totient is φ = 157168.

The previous prime is 196459. The next prime is 196477. The reversal of 196465 is 564691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564691 = 1015591.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 58081 = 372^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 196465 - 27 = 196337 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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, 19642 + ... + 19651.

It is an arithmetic number, because the mean of its divisors is an integer number (58941).

2196465 is an apocalyptic number.

It is an amenable number.

196465 is a deficient number, since it is larger than the sum of its proper divisors (39299).

196465 is an equidigital number, since it uses as much as digits as its factorization.

196465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39298.

The product of its digits is 6480, while the sum is 31.

The square root of 196465 is about 443.2437252799. The cubic root of 196465 is about 58.1337578818.

The spelling of 196465 in words is "one hundred ninety-six thousand, four hundred sixty-five".

Divisors: 1 5 39293 196465