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2389005 = 32553089
BaseRepresentation
bin1001000111010000001101
311111101002200
421013100031
51102422010
6123112113
726210013
oct11072015
94441080
102389005
111391993
12972639
13658518
144628b3
15322cc0
hex24740d

2389005 has 12 divisors (see below), whose sum is σ = 4141020. Its totient is φ = 1274112.

The previous prime is 2389001. The next prime is 2389021. The reversal of 2389005 is 5009832.

It can be written as a sum of positive squares in 2 ways, for example, as 459684 + 1929321 = 678^2 + 1389^2 .

It is not a de Polignac number, because 2389005 - 22 = 2389001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2389005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26500 + ... + 26589.

It is an arithmetic number, because the mean of its divisors is an integer number (345085).

22389005 is an apocalyptic number.

It is an amenable number.

2389005 is a deficient number, since it is larger than the sum of its proper divisors (1752015).

2389005 is a wasteful number, since it uses less digits than its factorization.

2389005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53100 (or 53097 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2389005 is about 1545.6406438755. The cubic root of 2389005 is about 133.6818210179.

The spelling of 2389005 in words is "two million, three hundred eighty-nine thousand, five".

Divisors: 1 3 5 9 15 45 53089 159267 265445 477801 796335 2389005