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2803420 = 225140171
BaseRepresentation
bin1010101100011011011100
312021102120101
422230123130
51204202140
6140030444
732554144
oct12543334
95242511
102803420
111645284
12b32424
13772039
1452d924
153a599a
hex2ac6dc

2803420 has 12 divisors (see below), whose sum is σ = 5887224. Its totient is φ = 1121360.

The previous prime is 2803403. The next prime is 2803421. The reversal of 2803420 is 243082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2803421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70066 + ... + 70105.

It is an arithmetic number, because the mean of its divisors is an integer number (490602).

22803420 is an apocalyptic number.

2803420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2803420 is an abundant number, since it is smaller than the sum of its proper divisors (3083804).

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

2803420 is a wasteful number, since it uses less digits than its factorization.

2803420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140180 (or 140178 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2803420 is about 1674.3416616688. The cubic root of 2803420 is about 141.0033364400.

It can be divided in two parts, 2803 and 420, that added together give a palindrome (3223).

The spelling of 2803420 in words is "two million, eight hundred three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 140171 280342 560684 700855 1401710 2803420