12840 (number)

12840 is an even 5-digits composite number following 12839 and preceding 12841. In scientific notation, it is written as 1.2840 × 10^4. The sum of its digits is 15. It has a total of 6 prime factors and 32 positive divisors. There are 3392 positive integers (up to 12840) that are relatively prime to 12840.

Interesting facts

Basic properties

Name

Name twelve thousand eight hundred forty

Notation

Scientific notation 1.2840 × 10^4
Engineering notation 1.2840 × 10^3

Prime Factorization of 12840

Prime Factorization 2 × 2 × 2 × 3 × 5 × 107

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3210
Product of the distinct prime numbers

The prime factorization of 12840 is 2 × 2 × 2 × 3 × 5 × 107. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 3, 87, 68, 162, 741, 7241, 6463, 77937, 15337, 117989, 911208, 1626346, 2531960, 79187957, 86154605, 700777315, 623096899, 9610086872, 2677052759

Basic calculations (n = 12840)

Multiplication

n×y
n×2 25680
n×3 38520
n×4 51360
n×5 64200

Division

n÷y
n÷2 6420
n÷3 4280
n÷3 3210
n÷5 2568

Exponentiation

ny
n2 164865600
n3 2116874304000
n4 27180666063360000
n5 3.4899975225354E+20

Nth Root

y√n
2√n 113.31372379372
3√n 23.416483382064
4√n 10.644891910852
5√n 6.6330459330564

Divisors of 12840

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 2140, 2568, 3210, 4280, 6420, 12840

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12840 can be divided by 32 positive divisors. The sum of these divisors (counting 12840) is 1, the average is 0.03125.

Base conversion 12840

Base System Value
2 Binary 11001000101000
3 Ternary 122121120
4 Quaternary 3020220
5 Quinary 402330
6 Senary 135240
8 Octal 31050
10 Decimal 12840
12 Duodecimal 7520
16 Hexadecimal 3228
20 Vigesimal 1c20
36 Base36 9wo

Cryptographic Hash Functions

md5 66b48af35b7a3e54fdf15aff3da8a918
sha1 b8cdca20dcc07f04e2d9a2dec470178d8cf813e5
sha256 7257ea14d41bf12099c351852842b7faae931533920e52645392d62618d4be7f
sha512 f08788c0f68892eaa1b923fb411e01340a86384289d4d57352052aa89e2388a87fc3cb6dafcaa184dad4a2fb9d7da961a12089ee46352efe96e6e0edf289e018
ripemd-160 0faf20c53dbc28ef9883a9344714ce41369ff200

12840 as geometric shapes

Circle

Radius = n
Diameter 25680
Circumference 80676.099344186
Area 517940557.78967

Sphere

Radius = n
Volume 8867142349359.2
Surface area 2071762231.1587
Circumference 80676.099344186

Square

Length = n
Perimeter 51360
Area 164865600
Diagonal 18158.502140871

Cube

Length = n
Surface area 989193600
Volume 2116874304000
Space diagonal 22239.532369184

Equilateral Triangle

Length = n
Perimeter 38520
Area 71388898.905082
Altitude 11119.766184592

Triangular Pyramid

Length = n
Surface area 71388898.905082
Volume 249476029212.99
Height 6052.8340469568