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2394385 = 57229337
BaseRepresentation
bin1001001000100100010001
311111122110221
421020210101
51103110020
6123153041
726231500
oct11104421
94448427
102394385
111395a34
12975781
1365aac6
14464837
153246aa
hex248911

2394385 has 24 divisors (see below), whose sum is σ = 3467880. Its totient is φ = 1580544.

The previous prime is 2394383. The next prime is 2394419. The reversal of 2394385 is 5834932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 108241 + 2286144 = 329^2 + 1512^2 .

It is not a de Polignac number, because 2394385 - 21 = 2394383 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2394385.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2394383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6937 + ... + 7273.

It is an arithmetic number, because the mean of its divisors is an integer number (144495).

22394385 is an apocalyptic number.

It is an amenable number.

2394385 is a deficient number, since it is larger than the sum of its proper divisors (1073495).

2394385 is a wasteful number, since it uses less digits than its factorization.

2394385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 378 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 2394385 is about 1547.3800438160. The cubic root of 2394385 is about 133.7820955380.

It can be divided in two parts, 239 and 4385, that added together give a square (4624 = 682).

The spelling of 2394385 in words is "two million, three hundred ninety-four thousand, three hundred eighty-five".

Divisors: 1 5 7 29 35 49 145 203 245 337 1015 1421 1685 2359 7105 9773 11795 16513 48865 68411 82565 342055 478877 2394385