Search a number
-
+
389057 is a prime number
BaseRepresentation
bin1011110111111000001
3201202200112
41132333001
544422212
612201105
73210164
oct1367701
9652615
10389057
11246339
12169195
13108116
14a1adb
157a422
hex5efc1

389057 has 2 divisors, whose sum is σ = 389058. Its totient is φ = 389056.

The previous prime is 389047. The next prime is 389083. The reversal of 389057 is 750983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287296 + 101761 = 536^2 + 319^2 .

It is an emirp because it is prime and its reverse (750983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389057 - 24 = 389041 is a prime.

It is not a weakly prime, because it can be changed into another prime (389027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194528 + 194529.

It is an arithmetic number, because the mean of its divisors is an integer number (194529).

2389057 is an apocalyptic number.

It is an amenable number.

389057 is a deficient number, since it is larger than the sum of its proper divisors (1).

389057 is an equidigital number, since it uses as much as digits as its factorization.

389057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 389057 is about 623.7443386517. The cubic root of 389057 is about 73.0025019472.

The spelling of 389057 in words is "three hundred eighty-nine thousand, fifty-seven".