Search a number
BaseRepresentation
bin1011110001100110101
3201121021120
41132030311
544321340
612134153
73164625
oct1361465
9647246
10385845
11243989
12167359
13106815
14a0885
15794d0
hex5e335

385845 has 16 divisors (see below), whose sum is σ = 639360. Its totient is φ = 198464.

The previous prime is 385843. The next prime is 385859. The reversal of 385845 is 548583.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 385845 - 21 = 385843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385843) 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 15 ways as a sum of consecutive naturals, for example, 9 + ... + 878.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2385845 is an apocalyptic number.

It is an amenable number.

385845 is a deficient number, since it is larger than the sum of its proper divisors (253515).

385845 is a wasteful number, since it uses less digits than its factorization.

385845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its digits is 19200, while the sum is 33.

The square root of 385845 is about 621.1642294917. The cubic root of 385845 is about 72.8010470606.

The spelling of 385845 in words is "three hundred eighty-five thousand, eight hundred forty-five".