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389051 = 1329927
BaseRepresentation
bin1011110111110111011
3201202200022
41132332323
544422201
612201055
73210155
oct1367673
9652608
10389051
11246333
1216918b
13108110
14a1ad5
157a41b
hex5efbb

389051 has 4 divisors (see below), whose sum is σ = 418992. Its totient is φ = 359112.

The previous prime is 389047. The next prime is 389057. The reversal of 389051 is 150983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150983 = 721569.

It is not a de Polignac number, because 389051 - 22 = 389047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389051.

It is not an unprimeable number, because it can be changed into a prime (389057) 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, 14951 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (104748).

2389051 is an apocalyptic number.

389051 is a deficient number, since it is larger than the sum of its proper divisors (29941).

389051 is a wasteful number, since it uses less digits than its factorization.

389051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29940.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 389051 is about 623.7395289702. The cubic root of 389051 is about 73.0021266660.

The spelling of 389051 in words is "three hundred eighty-nine thousand, fifty-one".

Divisors: 1 13 29927 389051