12978905 (number)

12978905 is an odd 8-digits composite number following 12978904 and preceding 12978906. In scientific notation, it is written as 1.2978905 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 9225216 positive integers (up to 12978905) that are relatively prime to 12978905.

Interesting facts

Basic properties

Name

Name twelve million nine hundred seventy-eight thousand nine hundred five

Notation

Scientific notation 1.2978905 × 10^7
Engineering notation 1.2978905 × 10^6

Prime Factorization of 12978905

Prime Factorization 5 × 901 × 67 × 43

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 12978905
Product of the distinct prime numbers

The prime factorization of 12978905 is 5 × 901 × 67 × 43. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 59, 95, 565, 188, 9035, 6796, 96152, 6951, 328242, 247505, 3064423, 8423057, 1327140, 23449057, 543037860, 817423696, 2667252018, 1420095784

Basic calculations (n = 12978905)

Multiplication

n×y
n×2 25957810
n×3 38936715
n×4 51915620
n×5 64894525

Division

n÷y
n÷2 6489452.5
n÷3 4326301.6666667
n÷3 3244726.25
n÷5 2595781

Exponentiation

ny
n2 168451974999025
n3 2.1863221805747E+21
n4 2.8376067881072E+28
n5 3.6829028930199E+35

Nth Root

y√n
2√n 3602.6247376045
3√n 235.00621682663
4√n 60.021868827991
5√n 26.463520005193

Divisors of 12978905

1, 5, 43, 67, 215, 335, 901, 2881, 4505, 14405, 38743, 60367, 193715, 301835, 2595781, 12978905

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12978904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12978905 can be divided by 16 positive divisors. The sum of these divisors (counting 12978905) is 1, the average is 0.0625.

Base conversion 12978905

Base System Value
2 Binary 110001100000101011011001
3 Ternary 220102101201012
4 Quaternary 301200223121
5 Quinary 11310311110
6 Senary 1142103305
8 Octal 61405331
10 Decimal 12978905
12 Duodecimal 441ab35
16 Hexadecimal c60ad9
20 Vigesimal 412755
36 Base36 7q6l5

Cryptographic Hash Functions

md5 960b8d34a01bb38e0b14c34a7753fc83
sha1 67e2acc6c0f0d4191c182fa5ab4ea1a9992166e0
sha256 db7fceaa2183708eb8a93b47026d96966b1215e19ce3c9ea0e2af664c35c665b
sha512 80abc087e881a5ceed18c8f285b81c94351b7241bc81775d54343f249087fb7955eb775e2be9453b370ce7e1aae6d6344b893732e43380d880525de387d2df2a
ripemd-160 9de9320d56fa0d63ad8ee9bd229048ec714ee10b

12978905 as geometric shapes

Circle

Radius = n
Diameter 25957810
Circumference 81548865.19928
Area 5.2920748713963E+14

Sphere

Radius = n
Volume 9.1580449344986E+21
Surface area 2.1168299485585E+15
Circumference 81548865.19928

Square

Length = n
Perimeter 51915620
Area 168451974999025
Diagonal 18354943.475752

Cube

Length = n
Surface area 1010711849994150
Volume 2.1863221805747E+21
Space diagonal 22480122.88661

Equilateral Triangle

Length = n
Perimeter 38936715
Area 72941844833408
Altitude 11240061.443305

Triangular Pyramid

Length = n
Surface area 72941844833408
Volume 2.5766053995716E+20
Height 6118314.4919173