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2068749 = 32534337
BaseRepresentation
bin111111001000100001101
310220002210100
413321010031
51012144444
6112201313
723404224
oct7710415
93802710
102068749
111193311
12839239
13575817
143bbcbb
152ace69
hex1f910d

2068749 has 12 divisors (see below), whose sum is σ = 3045276. Its totient is φ = 1352832.

The previous prime is 2068741. The next prime is 2068751. The reversal of 2068749 is 9478602.

It can be written as a sum of positive squares in 2 ways, for example, as 585225 + 1483524 = 765^2 + 1218^2 .

It is not a de Polignac number, because 2068749 - 23 = 2068741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1692 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (253773).

22068749 is an apocalyptic number.

It is an amenable number.

2068749 is a deficient number, since it is larger than the sum of its proper divisors (976527).

2068749 is a wasteful number, since it uses less digits than its factorization.

2068749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396 (or 4393 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2068749 is about 1438.3146387352. The cubic root of 2068749 is about 127.4195109060.

It can be divided in two parts, 20687 and 49, that added together give a 4-th power (20736 = 124).

The spelling of 2068749 in words is "two million, sixty-eight thousand, seven hundred forty-nine".

Divisors: 1 3 9 53 159 477 4337 13011 39033 229861 689583 2068749