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2806984 = 231959313
BaseRepresentation
bin1010101101010011001000
312021121110101
422231103020
51204310414
6140055144
732600425
oct12552310
95247411
102806984
111647a24
12b344b4
1377384b
14530d4c
153a6a74
hex2ad4c8

2806984 has 32 divisors (see below), whose sum is σ = 5652000. Its totient is φ = 1302912.

The previous prime is 2806963. The next prime is 2806987. The reversal of 2806984 is 4896082.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2806987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8812 + ... + 9124.

It is an arithmetic number, because the mean of its divisors is an integer number (176625).

22806984 is an apocalyptic number.

It is an amenable number.

2806984 is an abundant number, since it is smaller than the sum of its proper divisors (2845016).

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

2806984 is a wasteful number, since it uses less digits than its factorization.

2806984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2806984 is about 1675.4056225285. The cubic root of 2806984 is about 141.0630638542.

The spelling of 2806984 in words is "two million, eight hundred six thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 19 38 59 76 118 152 236 313 472 626 1121 1252 2242 2504 4484 5947 8968 11894 18467 23788 36934 47576 73868 147736 350873 701746 1403492 2806984