84 (number)

84 is an even 2-digits composite number following 83 and preceding 85. In scientific notation, it is written as 8.4 × 10^1. The sum of its digits is 12. It has a total of 4 prime factors and 12 positive divisors. There are 24 positive integers (up to 84) that are relatively prime to 84.

Interesting facts

Basic properties

Name

Name eighty-four

Notation

Scientific notation 8.4 × 10^1
Engineering notation 8.4 × 10^0

Prime Factorization of 84

Prime Factorization 2 × 2 × 3 × 7

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 42
Product of the distinct prime numbers

The prime factorization of 84 is 2 × 2 × 3 × 7. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 39, 23, 82, 371, 620, 2691, 54444, 7188, 781515, 897373, 4522034, 4171242, 88795004, 37046565, 630604861, 267364314, 2260444809, 385982915

Basic calculations (n = 84)

Multiplication

n×y
n×2 168
n×3 252
n×4 336
n×5 420

Division

n÷y
n÷2 42
n÷3 28
n÷3 21
n÷5 16.8

Exponentiation

ny
n2 7056
n3 592704
n4 49787136
n5 4182119424

Nth Root

y√n
2√n 9.1651513899117
3√n 4.3795191398879
4√n 3.0274001040351
5√n 2.4258048343235

Divisors of 84

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -83
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 84 can be divided by 12 positive divisors. The sum of these divisors (counting 84) is 1, the average is 0.083333333333333.

Base conversion 84

Base System Value
2 Binary 1010100
3 Ternary 10010
4 Quaternary 1110
5 Quinary 314
6 Senary 220
8 Octal 124
10 Decimal 84
12 Duodecimal 70
16 Hexadecimal 54
20 Vigesimal 44
36 Base36 2c

Cryptographic Hash Functions

md5 68d30a9594728bc39aa24be94b319d21
sha1 be461a0cd1fda052a69c3fd94f8cf5f6f86afa34
sha256 44c8031cb036a7350d8b9b8603af662a4b9cdbd2f96e8d5de5af435c9c35da69
sha512 cffaba95edd5423edc8f53a99927111e78647ba60c4c891ecf91a0b3d0ca61a8550fd75c20d4df22268bdb680d341cc5fb4d232c26c076c01a26911acb0b10ae
ripemd-160 7b9d657ead2093e0218895b5c5164792532ebee7

84 as geometric shapes

Circle

Radius = n
Diameter 168
Circumference 527.78756580309
Area 22167.07776373

Sphere

Radius = n
Volume 2482712.7095377
Surface area 88668.311054918
Circumference 527.78756580309

Square

Length = n
Perimeter 336
Area 7056
Diagonal 118.79393923934

Cube

Length = n
Surface area 42336
Volume 592704
Space diagonal 145.49226783579

Equilateral Triangle

Length = n
Perimeter 252
Area 3055.3376245515
Altitude 72.746133917893

Triangular Pyramid

Length = n
Surface area 3055.3376245515
Volume 69850.836272732
Height 39.597979746447