12981906 (number)

12981906 is an even 8-digits composite number following 12981905 and preceding 12981907. In scientific notation, it is written as 1.2981906 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 3683232 positive integers (up to 12981906) that are relatively prime to 12981906.

Interesting facts

Basic properties

Name

Name twelve million nine hundred eighty-one thousand nine hundred six

Notation

Scientific notation 1.2981906 × 10^7
Engineering notation 1.2981906 × 10^6

Prime Factorization of 12981906

Prime Factorization 2 × 9 × 7 × 523 × 197

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 12981906
Product of the distinct prime numbers

The prime factorization of 12981906 is 2 × 9 × 7 × 523 × 197. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 2, 3, 100, 183, 951, 5404, 5506, 64130, 51574, 350683, 682273, 8994746, 2701242, 49371802, 79521785, 501247360, 100278938, 9325743830, 196574980

Basic calculations (n = 12981906)

Multiplication

n×y
n×2 25963812
n×3 38945718
n×4 51927624
n×5 64909530

Division

n÷y
n÷2 6490953
n÷3 4327302
n÷3 3245476.5
n÷5 2596381.2

Exponentiation

ny
n2 168529883392836
n3 2.1878391043968E+21
n4 2.8402321596403E+28
n5 3.6871626914627E+35

Nth Root

y√n
2√n 3603.0412154179
3√n 235.02432824941
4√n 60.02533811165
5√n 26.464743678213

Divisors of 12981906

1, 2, 7, 9, 14, 18, 63, 126, 197, 394, 523, 1046, 1379, 1773, 2758, 3546, 3661, 4707, 7322, 9414, 12411, 24822, 32949, 65898, 103031, 206062, 721217, 927279, 1442434, 1854558, 6490953, 12981906

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 -12981905
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 12981906 can be divided by 32 positive divisors. The sum of these divisors (counting 12981906) is 1, the average is 0.03125.

Base conversion 12981906

Base System Value
2 Binary 110001100001011010010010
3 Ternary 220102112211100
4 Quaternary 301201122102
5 Quinary 11310410111
6 Senary 1142125230
8 Octal 61413222
10 Decimal 12981906
12 Duodecimal 4420816
16 Hexadecimal c61692
20 Vigesimal 412ef6
36 Base36 7q8wi

Cryptographic Hash Functions

md5 c44f6062f19d6cfbe6b328a893c1e8d8
sha1 e745948439b0d36486cf20feefa726f6ac16b78e
sha256 800c7a6d3c49138e5f8e916f93ecab4649d3a39370594195b62a725a64f2681c
sha512 32a7098fbde75bea606382200b9c79205a8bae53a86084c94f74819e51b35baa762aca30720f8a1be03c6dd565a4021eb456305e401078cd89a9624cb44a423d
ripemd-160 28abb7796da5c994709511aab6128c7729520273

12981906 as geometric shapes

Circle

Radius = n
Diameter 25963812
Circumference 81567721.038387
Area 5.2945224357728E+14

Sphere

Radius = n
Volume 9.1643990101458E+21
Surface area 2.1178089743091E+15
Circumference 81567721.038387

Square

Length = n
Perimeter 51927624
Area 168529883392836
Diagonal 18359187.530653

Cube

Length = n
Surface area 1011179300357016
Volume 2.1878391043968E+21
Space diagonal 22485320.771083

Equilateral Triangle

Length = n
Perimeter 38945718
Area 72975580157513
Altitude 11242660.385542

Triangular Pyramid

Length = n
Surface area 72975580157513
Volume 2.5783931114401E+20
Height 6119729.1768842