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2804380 = 225281499
BaseRepresentation
bin1010101100101010011100
312021110212221
422230222130
51204220010
6140035124
732560015
oct12545234
95243787
102804380
111645a77
12b32aa4
137725c7
1453000c
153a5dda
hex2aca9c

2804380 has 24 divisors (see below), whose sum is σ = 5922000. Its totient is φ = 1115520.

The previous prime is 2804377. The next prime is 2804383. The reversal of 2804380 is 834082.

2804380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2804377) and next prime (2804383).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804383) 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 7 ways as a sum of consecutive naturals, for example, 5371 + ... + 5869.

It is an arithmetic number, because the mean of its divisors is an integer number (246750).

22804380 is an apocalyptic number.

2804380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2804380 is an abundant number, since it is smaller than the sum of its proper divisors (3117620).

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

2804380 is a wasteful number, since it uses less digits than its factorization.

2804380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2804380 is about 1674.6283169707. The cubic root of 2804380 is about 141.0194296113.

The spelling of 2804380 in words is "two million, eight hundred four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 281 499 562 998 1124 1405 1996 2495 2810 4990 5620 9980 140219 280438 560876 701095 1402190 2804380