12640 (number)

12640 is an even 5-digits composite number following 12639 and preceding 12641. In scientific notation, it is written as 1.2640 × 10^4. The sum of its digits is 13. It has a total of 7 prime factors and 24 positive divisors. There are 4992 positive integers (up to 12640) that are relatively prime to 12640.

Interesting facts

Basic properties

Name

Name twelve thousand six hundred forty

Notation

Scientific notation 1.2640 × 10^4
Engineering notation 1.2640 × 10^3

Prime Factorization of 12640

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 79

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 790
Product of the distinct prime numbers

The prime factorization of 12640 is 2 × 2 × 2 × 2 × 2 × 5 × 79. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 3, 70, 21, 728, 733, 7827, 4764, 89804, 71886, 974681, 219428, 3133043, 3001618, 15727291, 94396682, 362971717, 428792147, 314738237, 997245030

Basic calculations (n = 12640)

Multiplication

n×y
n×2 25280
n×3 37920
n×4 50560
n×5 63200

Division

n÷y
n÷2 6320
n÷3 4213.3333333333
n÷3 3160
n÷5 2528

Exponentiation

ny
n2 159769600
n3 2019487744000
n4 25526325084160000
n5 3.2265274906378E+20

Nth Root

y√n
2√n 112.42775458044
3√n 23.294265690235
4√n 10.603195489117
5√n 6.6122522762928

Divisors of 12640

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 6320, 12640

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12640 can be divided by 24 positive divisors. The sum of these divisors (counting 12640) is 1, the average is 0.041666666666667.

Base conversion 12640

Base System Value
2 Binary 11000101100000
3 Ternary 122100011
4 Quaternary 3011200
5 Quinary 401030
6 Senary 134304
8 Octal 30540
10 Decimal 12640
12 Duodecimal 7394
16 Hexadecimal 3160
20 Vigesimal 1bc0
36 Base36 9r4

Cryptographic Hash Functions

md5 b673ed011cfb3c810010abed6f3a034b
sha1 edc142ed5dfef6bc79855f01ae858f9c068e6f37
sha256 3dff5ac730d451030fecab156051e979e7fda0f7bb34fa877555c49549c6f071
sha512 9f79e7b58e01ee1258305c32023268af303374723bf1c15aea59dfcb87375cc8e7acdc24f6b51161f0d0cfca2c6b5b0c575e2e8016a94413bd00035c77771607
ripemd-160 1218e2f6ffcec44b842a4e4a0ded3dd2ba64c961

12640 as geometric shapes

Circle

Radius = n
Diameter 25280
Circumference 79419.46228275
Area 501931001.62698

Sphere

Radius = n
Volume 8459210480753.4
Surface area 2007724006.5079
Circumference 79419.46228275

Square

Length = n
Perimeter 50560
Area 159769600
Diagonal 17875.659428396

Cube

Length = n
Surface area 958617600
Volume 2019487744000
Space diagonal 21893.122207671

Equilateral Triangle

Length = n
Perimeter 37920
Area 69182266.176239
Altitude 10946.561103835

Triangular Pyramid

Length = n
Surface area 69182266.176239
Volume 237998913050.92
Height 5958.5531427986