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2680845 = 35313571
BaseRepresentation
bin1010001110100000001101
312001012102120
422032200031
51141241340
6133243153
731533606
oct12164015
95035376
102680845
111571182
12a934b9
1372b2cb
144dadad
1537e4d0
hex28e80d

2680845 has 16 divisors (see below), whose sum is σ = 4310592. Its totient is φ = 1422720.

The previous prime is 2680837. The next prime is 2680877. The reversal of 2680845 is 5480862.

It is not a de Polignac number, because 2680845 - 23 = 2680837 is a prime.

2680845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4410 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (269412).

22680845 is an apocalyptic number.

It is an amenable number.

2680845 is a deficient number, since it is larger than the sum of its proper divisors (1629747).

2680845 is a wasteful number, since it uses less digits than its factorization.

2680845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2680845 is about 1637.3286169856. The cubic root of 2680845 is about 138.9175882619.

The spelling of 2680845 in words is "two million, six hundred eighty thousand, eight hundred forty-five".

Divisors: 1 3 5 15 313 571 939 1565 1713 2855 4695 8565 178723 536169 893615 2680845