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384245 = 5313767
BaseRepresentation
bin1011101110011110101
3201112002022
41131303311
544243440
612122525
73160151
oct1356365
9645068
10384245
11242764
12166445
13105b84
14a0061
1578cb5
hex5dcf5

384245 has 16 divisors (see below), whose sum is σ = 496128. Its totient is φ = 285120.

The previous prime is 384227. The next prime is 384247. The reversal of 384245 is 542483.

384245 = 293 + 303 + ... + 383.

It is not a de Polignac number, because 384245 - 210 = 383221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5702 + ... + 5768.

It is an arithmetic number, because the mean of its divisors is an integer number (31008).

2384245 is an apocalyptic number.

It is an amenable number.

384245 is a deficient number, since it is larger than the sum of its proper divisors (111883).

384245 is a wasteful number, since it uses less digits than its factorization.

384245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140.

The product of its digits is 3840, while the sum is 26.

The square root of 384245 is about 619.8749873967. The cubic root of 384245 is about 72.7002785708.

It can be divided in two parts, 3 and 84245, that added together give a palindrome (84248).

The spelling of 384245 in words is "three hundred eighty-four thousand, two hundred forty-five".

Divisors: 1 5 31 37 67 155 185 335 1147 2077 2479 5735 10385 12395 76849 384245