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193055 = 538611
BaseRepresentation
bin101111001000011111
3100210211012
4233020133
522134210
64045435
71432562
oct571037
9323735
10193055
11122055
129387b
1369b45
14504d9
153c305
hex2f21f

193055 has 4 divisors (see below), whose sum is σ = 231672. Its totient is φ = 154440.

The previous prime is 193051. The next prime is 193057. The reversal of 193055 is 550391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550391 = 2918979.

It is not a de Polignac number, because 193055 - 22 = 193051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 193055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193051) 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, 19301 + ... + 19310.

It is an arithmetic number, because the mean of its divisors is an integer number (57918).

2193055 is an apocalyptic number.

193055 is a deficient number, since it is larger than the sum of its proper divisors (38617).

193055 is an equidigital number, since it uses as much as digits as its factorization.

193055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38616.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 193055 is about 439.3802453456. The cubic root of 193055 is about 57.7954546778.

The spelling of 193055 in words is "one hundred ninety-three thousand, fifty-five".

Divisors: 1 5 38611 193055