Search a number
-
+
2840288 = 25118069
BaseRepresentation
bin1010110101011011100000
312100022010212
422311123200
51211342123
6140513252
733066503
oct12653340
95308125
102840288
11166aa50
12b4b828
13785a59
1453d13a
153b1878
hex2b56e0

2840288 has 24 divisors (see below), whose sum is σ = 6100920. Its totient is φ = 1290880.

The previous prime is 2840281. The next prime is 2840303. The reversal of 2840288 is 8820482.

2840288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840281) 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 3 ways as a sum of consecutive naturals, for example, 3683 + ... + 4386.

It is an arithmetic number, because the mean of its divisors is an integer number (254205).

22840288 is an apocalyptic number.

It is an amenable number.

2840288 is an abundant number, since it is smaller than the sum of its proper divisors (3260632).

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

2840288 is a wasteful number, since it uses less digits than its factorization.

2840288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8090 (or 8082 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 2840288 is about 1685.3154007485. The cubic root of 2840288 is about 141.6187618112.

The spelling of 2840288 in words is "two million, eight hundred forty thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 8069 16138 32276 64552 88759 129104 177518 258208 355036 710072 1420144 2840288