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2168984 = 231371979
BaseRepresentation
bin1000010001100010011000
311002012021202
420101202120
51023401414
6114253332
724302366
oct10214230
94065252
102168984
111251654
12887248
135ac32c
14406636
152cc9de
hex211898

2168984 has 16 divisors (see below), whose sum is σ = 4098600. Its totient is φ = 1076032.

The previous prime is 2168953. The next prime is 2168987. The reversal of 2168984 is 4898612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107 + ... + 2085.

22168984 is an apocalyptic number.

It is an amenable number.

2168984 is a deficient number, since it is larger than the sum of its proper divisors (1929616).

2168984 is a wasteful number, since it uses less digits than its factorization.

2168984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122 (or 2118 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 2168984 is about 1472.7470930204. The cubic root of 2168984 is about 129.4450505531.

It can be divided in two parts, 2168 and 984, that multiplied together give a palindrome (2133312).

The spelling of 2168984 in words is "two million, one hundred sixty-eight thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 137 274 548 1096 1979 3958 7916 15832 271123 542246 1084492 2168984