Search a number
-
+
1085423 = 5918397
BaseRepresentation
bin100001000111111101111
32001010220212
410020333233
5234213143
635133035
712140333
oct4107757
92033825
101085423
11681549
1244417b
132c0081
142037c3
15166918
hex108fef

1085423 has 4 divisors (see below), whose sum is σ = 1103880. Its totient is φ = 1066968.

The previous prime is 1085419. The next prime is 1085429. The reversal of 1085423 is 3245801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3245801 = 13249677.

It is a cyclic number.

It is not a de Polignac number, because 1085423 - 22 = 1085419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085429) by changing a digit.

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, 9140 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (275970).

21085423 is an apocalyptic number.

1085423 is a deficient number, since it is larger than the sum of its proper divisors (18457).

1085423 is an equidigital number, since it uses as much as digits as its factorization.

1085423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18456.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1085423 is about 1041.8363595114. The cubic root of 1085423 is about 102.7699960886.

The spelling of 1085423 in words is "one million, eighty-five thousand, four hundred twenty-three".

Divisors: 1 59 18397 1085423