Search a number
-
+
193045 = 538609
BaseRepresentation
bin101111001000010101
3100210210211
4233020111
522134140
64045421
71432546
oct571025
9323724
10193045
11122046
1293871
1369b38
14504cd
153c2ea
hex2f215

193045 has 4 divisors (see below), whose sum is σ = 231660. Its totient is φ = 154432.

The previous prime is 193043. The next prime is 193051. The reversal of 193045 is 540391.

193045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62001 + 131044 = 249^2 + 362^2 .

It is a cyclic number.

It is not a de Polignac number, because 193045 - 21 = 193043 is a prime.

193045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193043) 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, 19300 + ... + 19309.

It is an arithmetic number, because the mean of its divisors is an integer number (57915).

2193045 is an apocalyptic number.

It is an amenable number.

193045 is a deficient number, since it is larger than the sum of its proper divisors (38615).

193045 is an equidigital number, since it uses as much as digits as its factorization.

193045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38614.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 193045 is about 439.3688655333. The cubic root of 193045 is about 57.7944567506.

The spelling of 193045 in words is "one hundred ninety-three thousand, forty-five".

Divisors: 1 5 38609 193045