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190493 = 712683
BaseRepresentation
bin101110100000011101
3100200022022
4232200131
522043433
64025525
71422242
oct564035
9320268
10190493
11120136
12922a5
1368924
144d5c9
153b698
hex2e81d

190493 has 4 divisors (see below), whose sum is σ = 193248. Its totient is φ = 187740.

The previous prime is 190471. The next prime is 190507. The reversal of 190493 is 394091.

It is a happy number.

190493 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, 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: 394091 = 577683.

It is a cyclic number.

It is not a de Polignac number, because 190493 - 212 = 186397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 190493.

It is not an unprimeable number, because it can be changed into a prime (190403) 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, 1271 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (48312).

2190493 is an apocalyptic number.

It is an amenable number.

190493 is a deficient number, since it is larger than the sum of its proper divisors (2755).

190493 is an equidigital number, since it uses as much as digits as its factorization.

190493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 190493 is about 436.4550377759. The cubic root of 190493 is about 57.5386507622.

The spelling of 190493 in words is "one hundred ninety thousand, four hundred ninety-three".

Divisors: 1 71 2683 190493