Search a number
-
+
389793 = 3177643
BaseRepresentation
bin1011111001010100001
3201210200210
41133022201
544433133
612204333
73212265
oct1371241
9653623
10389793
11246948
121696a9
13108561
14a20a5
157a763
hex5f2a1

389793 has 8 divisors (see below), whose sum is σ = 550368. Its totient is φ = 244544.

The previous prime is 389791. The next prime is 389797. The reversal of 389793 is 397983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389793 - 21 = 389791 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389793.

It is not an unprimeable number, because it can be changed into a prime (389791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3771 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (68796).

2389793 is an apocalyptic number.

It is an amenable number.

389793 is a deficient number, since it is larger than the sum of its proper divisors (160575).

389793 is a wasteful number, since it uses less digits than its factorization.

389793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7663.

The product of its digits is 40824, while the sum is 39.

The square root of 389793 is about 624.3340452034. The cubic root of 389793 is about 73.0485071990.

The spelling of 389793 in words is "three hundred eighty-nine thousand, seven hundred ninety-three".

Divisors: 1 3 17 51 7643 22929 129931 389793