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2816620 = 225140831
BaseRepresentation
bin1010101111101001101100
312022002200021
422233221230
51210112440
6140211524
732640502
oct12575154
95262607
102816620
111654194
12b39ba4
13778051
14534672
153a984a
hex2afa6c

2816620 has 12 divisors (see below), whose sum is σ = 5914944. Its totient is φ = 1126640.

The previous prime is 2816581. The next prime is 2816623. The reversal of 2816620 is 266182.

It is not an unprimeable number, because it can be changed into a prime (2816623) 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 3 ways as a sum of consecutive naturals, for example, 70396 + ... + 70435.

It is an arithmetic number, because the mean of its divisors is an integer number (492912).

22816620 is an apocalyptic number.

2816620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2816620 is an abundant number, since it is smaller than the sum of its proper divisors (3098324).

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

2816620 is a wasteful number, since it uses less digits than its factorization.

2816620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140840 (or 140838 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2816620 is about 1678.2788802818. The cubic root of 2816620 is about 141.2242963645.

The spelling of 2816620 in words is "two million, eight hundred sixteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 140831 281662 563324 704155 1408310 2816620