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2812828 = 221514657
BaseRepresentation
bin1010101110101110011100
312021220110211
422232232130
51210002303
6140142204
732623444
oct12565634
95256424
102812828
111651357
12b37964
137763c5
14533124
153a866d
hex2aeb9c

2812828 has 12 divisors (see below), whose sum is σ = 4956112. Its totient is φ = 1396800.

The previous prime is 2812819. The next prime is 2812829. The reversal of 2812828 is 8282182.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2812828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812829) 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, 1725 + ... + 2932.

22812828 is an apocalyptic number.

It is an amenable number.

2812828 is a deficient number, since it is larger than the sum of its proper divisors (2143284).

2812828 is a wasteful number, since it uses less digits than its factorization.

2812828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812 (or 4810 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 2812828 is about 1677.1487709801. The cubic root of 2812828 is about 141.1608914045.

The spelling of 2812828 in words is "two million, eight hundred twelve thousand, eight hundred twenty-eight".

Divisors: 1 2 4 151 302 604 4657 9314 18628 703207 1406414 2812828