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2684020 = 225672003
BaseRepresentation
bin1010001111010001110100
312001100210011
422033101310
51141342040
6133310004
731546063
oct12172164
95040704
102684020
1115735a9
12a95304
1372c8a1
144dc1da
153803ea
hex28f474

2684020 has 24 divisors (see below), whose sum is σ = 5723424. Its totient is φ = 1057056.

The previous prime is 2683999. The next prime is 2684021. The reversal of 2684020 is 204862.

2684020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2683982 and 2684000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684021) 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, 339 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (238476).

22684020 is an apocalyptic number.

2684020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2684020 is an abundant number, since it is smaller than the sum of its proper divisors (3039404).

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

2684020 is a wasteful number, since it uses less digits than its factorization.

2684020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2077 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2684020 is about 1638.2978972092. The cubic root of 2684020 is about 138.9724079594.

Adding to 2684020 its reverse (204862), we get a palindrome (2888882).

The spelling of 2684020 in words is "two million, six hundred eighty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 2003 4006 8012 10015 20030 40060 134201 268402 536804 671005 1342010 2684020