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2680623 = 321127077
BaseRepresentation
bin1010001110011100101111
312001012010100
422032130233
51141234443
6133242143
731533141
oct12163457
95035110
102680623
111570aa0
12a93353
1372b18a
144dac91
1537e3d3
hex28e72f

2680623 has 12 divisors (see below), whose sum is σ = 4224168. Its totient is φ = 1624560.

The previous prime is 2680619. The next prime is 2680631. The reversal of 2680623 is 3260862.

It is not a de Polignac number, because 2680623 - 22 = 2680619 is a prime.

2680623 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680693) 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 11 ways as a sum of consecutive naturals, for example, 13440 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (352014).

22680623 is an apocalyptic number.

2680623 is a deficient number, since it is larger than the sum of its proper divisors (1543545).

2680623 is a wasteful number, since it uses less digits than its factorization.

2680623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27094 (or 27091 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2680623 is about 1637.2608222272. The cubic root of 2680623 is about 138.9137535809.

It can be divided in two parts, 2 and 680623, that added together give a square (680625 = 8252).

The spelling of 2680623 in words is "two million, six hundred eighty thousand, six hundred twenty-three".

Divisors: 1 3 9 11 33 99 27077 81231 243693 297847 893541 2680623