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2680187 = 12832089
BaseRepresentation
bin1010001110010101111011
312001011112012
422032111323
51141231222
6133240135
731531646
oct12162573
95034465
102680187
111570734
12a9304b
1372ac13
144daa5d
1537e1e2
hex28e57b

2680187 has 4 divisors (see below), whose sum is σ = 2683560. Its totient is φ = 2676816.

The previous prime is 2680141. The next prime is 2680231. The reversal of 2680187 is 7810862.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2680187 - 26 = 2680123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2680127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (670890).

22680187 is an apocalyptic number.

2680187 is a deficient number, since it is larger than the sum of its proper divisors (3373).

2680187 is a wasteful number, since it uses less digits than its factorization.

2680187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2680187 is about 1637.1276675935. The cubic root of 2680187 is about 138.9062217894.

The spelling of 2680187 in words is "two million, six hundred eighty thousand, one hundred eighty-seven".

Divisors: 1 1283 2089 2680187