Search a number
-
+
2816988 = 223234749
BaseRepresentation
bin1010101111101111011100
312022010011220
422233233130
51210120423
6140213340
732641536
oct12575734
95263156
102816988
111654499
12b3a250
13778275
14534856
153a99e3
hex2afbdc

2816988 has 12 divisors (see below), whose sum is σ = 6573000. Its totient is φ = 938992.

The previous prime is 2816981. The next prime is 2817007. The reversal of 2816988 is 8896182.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2816981) 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, 117363 + ... + 117386.

It is an arithmetic number, because the mean of its divisors is an integer number (547750).

22816988 is an apocalyptic number.

It is an amenable number.

2816988 is an abundant number, since it is smaller than the sum of its proper divisors (3756012).

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

2816988 is a wasteful number, since it uses less digits than its factorization.

2816988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234756 (or 234754 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 2816988 is about 1678.3885128301. The cubic root of 2816988 is about 141.2304465585.

The spelling of 2816988 in words is "two million, eight hundred sixteen thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 234749 469498 704247 938996 1408494 2816988