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2384389 = 7248661
BaseRepresentation
bin1001000110001000000101
311111010202201
421012020011
51102300024
6123034501
726160400
oct11061005
94433681
102384389
111389477
1296ba31
136563a7
14460d37
15321744
hex246205

2384389 has 6 divisors (see below), whose sum is σ = 2773734. Its totient is φ = 2043720.

The previous prime is 2384383. The next prime is 2384401. The reversal of 2384389 is 9834832.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 540225 = 1358^2 + 735^2 .

It is not a de Polignac number, because 2384389 - 23 = 2384381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2384381) 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 5 ways as a sum of consecutive naturals, for example, 24282 + ... + 24379.

It is an arithmetic number, because the mean of its divisors is an integer number (462289).

22384389 is an apocalyptic number.

It is an amenable number.

2384389 is a deficient number, since it is larger than the sum of its proper divisors (389345).

2384389 is an equidigital number, since it uses as much as digits as its factorization.

2384389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48675 (or 48668 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 2384389 is about 1544.1466899229. The cubic root of 2384389 is about 133.5956661615.

It can be divided in two parts, 23843 and 89, that added together give a palindrome (23932).

The spelling of 2384389 in words is "two million, three hundred eighty-four thousand, three hundred eighty-nine".

Divisors: 1 7 49 48661 340627 2384389