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389495 = 577899
BaseRepresentation
bin1011111000101110111
3201210021202
41133011313
544430440
612203115
73211361
oct1370567
9653252
10389495
112466a7
1216949b
13108392
14a1d31
157a615
hex5f177

389495 has 4 divisors (see below), whose sum is σ = 467400. Its totient is φ = 311592.

The previous prime is 389483. The next prime is 389507. The reversal of 389495 is 594983.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (389483) and next prime (389507).

It is a cyclic number.

It is not a de Polignac number, because 389495 - 24 = 389479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38945 + ... + 38954.

It is an arithmetic number, because the mean of its divisors is an integer number (116850).

2389495 is an apocalyptic number.

389495 is a deficient number, since it is larger than the sum of its proper divisors (77905).

389495 is an equidigital number, since it uses as much as digits as its factorization.

389495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77904.

The product of its digits is 38880, while the sum is 38.

The square root of 389495 is about 624.0953452799. The cubic root of 389495 is about 73.0298870554.

It can be divided in two parts, 3 and 89495, that added together give a palindrome (89498).

The spelling of 389495 in words is "three hundred eighty-nine thousand, four hundred ninety-five".

Divisors: 1 5 77899 389495