81109724 (number)

81109724 is an even 8-digits composite number following 81109723 and preceding 81109725. In scientific notation, it is written as 8.1109724 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 40530000 positive integers (up to 81109724) that are relatively prime to 81109724.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred nine thousand seven hundred twenty-four

Notation

Scientific notation 8.1109724 × 10^7
Engineering notation 8.1109724 × 10^6

Prime Factorization of 81109724

Prime Factorization 2 × 2 × 10501 × 1931

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40554862
Product of the distinct prime numbers

The prime factorization of 81109724 is 2 × 2 × 10501 × 1931. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 6, 96, 706, 65, 2353, 653, 52219, 16495, 945080, 518273, 6789958, 5017114, 5355808, 83601933, 924544379, 368383261, 5732848320, 6603981349

Basic calculations (n = 81109724)

Multiplication

n×y
n×2 162219448
n×3 243329172
n×4 324438896
n×5 405548620

Division

n÷y
n÷2 40554862
n÷3 27036574.666667
n÷3 20277431
n÷5 16221944.8

Exponentiation

ny
n2 6578787327356176
n3 5.3360362437656E+23
n4 4.3280442698582E+31
n5 3.5104647618798E+39

Nth Root

y√n
2√n 9006.0937148133
3√n 432.8701525611
4√n 94.900441067538
5√n 38.178124047097

Divisors of 81109724

1, 2, 4, 1931, 3862, 7724, 10501, 21002, 42004, 20277431, 40554862, 81109724

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 -81109723
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 81109724 can be divided by 12 positive divisors. The sum of these divisors (counting 81109724) is 1, the average is 0.083333333333333.

Base conversion 81109724

Base System Value
2 Binary 100110101011010001011011100
3 Ternary 12122121210121212
4 Quaternary 10311122023130
5 Quinary 131231002344
6 Senary 12014243552
8 Octal 465321334
10 Decimal 81109724
12 Duodecimal 231b65b8
16 Hexadecimal 4d5a2dc
20 Vigesimal 156ie64
36 Base36 1cagnw

Cryptographic Hash Functions

md5 424b2cb39d9df964887508f8ef645938
sha1 fe3f0e91730829d8ec56e6807d7b3f1d51c55712
sha256 c5e74e9e798cd37dc3a250b8a991715301736254f8423e799379e4b9534368e3
sha512 4df7a0777f81818cd6778265de6c86d1ad701798482a96a6fcfd7b48a8c222a3c3e7aa92f828285aa5a087b120ec5052ae6daa1237118724c8d8f1e6257d2a25
ripemd-160 ff1b523fd2ee3f322fe7917df15b6506bd585d78

81109724 as geometric shapes

Circle

Radius = n
Diameter 162219448
Circumference 509627426.10619
Area 2.0667869937152E+16

Sphere

Radius = n
Volume 2.235153635027E+24
Surface area 8.2671479748607E+16
Circumference 509627426.10619

Square

Length = n
Perimeter 324438896
Area 6578787327356176
Diagonal 114706471.72114

Cube

Length = n
Surface area 39472723964137056
Volume 5.3360362437656E+23
Space diagonal 140486162.95589

Equilateral Triangle

Length = n
Perimeter 243329172
Area 2.8486984757928E+15
Altitude 70243081.477944

Triangular Pyramid

Length = n
Surface area 2.8486984757928E+15
Volume 6.2885790210397E+22
Height 38235490.573713