84

Previous number

83

Next number

85

Sum of digits

12

Divisors of 84

Number of divisors

12

Sum of divisors

224

Factorization

84 = 2 × 2 × 3 × 7

Prime factors of 84

Factor Count
2 2
3 1
7 1

Square of 84

7056

Cube of 84

592704

Square root of 84

9.16515138991167965798467776039615...

Cube root of 84

4.37951913988788898990378584130667...

84th triangle number

3570

Reciprocal of 84

0.0119047619047619

Binary of 84

1010100

Number of digits of 84 in base 2

7

Octal of 84

124

Hexadecimal of 84

54

Prime number No
Hexagonal number No
Perfect number No
Deficient number No
Abundant number No
Mersenne number No
Harshad number Yes
Harmonic divisor number No

Quadratic residues of 84

QR84 (sequence)

84th composite number

115

Euler's totient function of 84

24

Carmichael function of 84

6

Möbius function of 84

0

Properties of 84

Properties of the number 84: 84 has 12 divisors. The divisors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 and the sum of them is 224. The factorization of 84 is 2 × 2 × 3 × 7. The square and cube of 84 are 7056 and 592704 respectively. The square root and cube root of 84 are 9.16515138991167965798467776039615... and 4.37951913988788898990378584130667.... The binary, octal, hexadecimal of 84 are 1010100, 124, 54. 84 is not a prime number, not hexagonal number, not perfect number, not deficient number, not Mersenne number, not Mersenne number, Harshad number, not harmonic divisor number.

sin 84

0.73319032007329221212188485878869...

cos 84

-0.68002349558733876655480798945064...

tan 84

-1.07818380516401557400740784942172...

sin 84°

0.99452189536827328986134943988873...

cos 84°

0.10452846326765345696951925447138...

tan 84°

9.51436445422258714188501471653581...

log 84

4.43081679884331336438663129229099...

log10 84

1.92427928606188158866530102386605...

log2 84

6.39231742277876069380226908833720...

Related pairs