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2827389 = 31755439
BaseRepresentation
bin1010110010010001111101
312022122110010
422302101331
51210434024
6140333433
733014055
oct12622175
95278403
102827389
111661294
12b44279
1377cc16
14538565
153acb29
hex2b247d

2827389 has 8 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 1774016.

The previous prime is 2827387. The next prime is 2827393. The reversal of 2827389 is 9837282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2827389 - 21 = 2827387 is a prime.

It is a d-powerful number, because it can be written as 216 + 82 + 220 + 76 + 313 + 83 + 93 .

2827389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2827381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27669 + ... + 27770.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

22827389 is an apocalyptic number.

It is an amenable number.

2827389 is a deficient number, since it is larger than the sum of its proper divisors (1164291).

2827389 is a wasteful number, since it uses less digits than its factorization.

2827389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55459.

The product of its digits is 48384, while the sum is 39.

The square root of 2827389 is about 1681.4841658487. The cubic root of 2827389 is about 141.4040520410.

The spelling of 2827389 in words is "two million, eight hundred twenty-seven thousand, three hundred eighty-nine".

Divisors: 1 3 17 51 55439 166317 942463 2827389