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389230 = 2538923
BaseRepresentation
bin1011111000001101110
3201202220221
41133001232
544423410
612201554
73210532
oct1370156
9652827
10389230
11246486
121692ba
1310821a
14a1bc2
157a4da
hex5f06e

389230 has 8 divisors (see below), whose sum is σ = 700632. Its totient is φ = 155688.

The previous prime is 389227. The next prime is 389231. The reversal of 389230 is 32983.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 389195 and 389204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389231) 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 3 ways as a sum of consecutive naturals, for example, 19452 + ... + 19471.

It is an arithmetic number, because the mean of its divisors is an integer number (87579).

2389230 is an apocalyptic number.

389230 is a deficient number, since it is larger than the sum of its proper divisors (311402).

389230 is a wasteful number, since it uses less digits than its factorization.

389230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38930.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 389230 is about 623.8830018521. The cubic root of 389230 is about 73.0133208943.

The spelling of 389230 in words is "three hundred eighty-nine thousand, two hundred thirty".

Divisors: 1 2 5 10 38923 77846 194615 389230