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2680180 = 225294621
BaseRepresentation
bin1010001110010101110100
312001011111221
422032111310
51141231210
6133240124
731531636
oct12162564
95034457
102680180
111570728
12a93044
1372ac09
144daa56
1537e1da
hex28e574

2680180 has 24 divisors (see below), whose sum is σ = 5823720. Its totient is φ = 1034880.

The previous prime is 2680141. The next prime is 2680231. The reversal of 2680180 is 810862.

2680180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 190096 + 2490084 = 436^2 + 1578^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1731 + ... + 2890.

It is an arithmetic number, because the mean of its divisors is an integer number (242655).

22680180 is an apocalyptic number.

2680180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680180 is an abundant number, since it is smaller than the sum of its proper divisors (3143540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2680180 is a wasteful number, since it uses less digits than its factorization.

2680180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659 (or 4657 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 2680180 is about 1637.1255297014. The cubic root of 2680180 is about 138.9061008595.

The spelling of 2680180 in words is "two million, six hundred eighty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 4621 9242 18484 23105 46210 92420 134009 268018 536036 670045 1340090 2680180