81109875 (number)

81109875 is an odd 8-digits composite number following 81109874 and preceding 81109876. In scientific notation, it is written as 8.1109875 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors. There are 33072000 positive integers (up to 81109875) that are relatively prime to 81109875.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred nine thousand eight hundred seventy-five

Notation

Scientific notation 8.1109875 × 10^7
Engineering notation 8.1109875 × 10^6

Prime Factorization of 81109875

Prime Factorization 105 × 25 × 11 × 53 × 53

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1530375
Product of the distinct prime numbers

The prime factorization of 81109875 is 105 × 25 × 11 × 53 × 53. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 10, 41, 20, 706, 562, 9182, 780, 43527, 54266, 202227, 961191, 8827639, 9036441, 93610411, 85235184, 547959295, 97310985, 3242323904, 4895280388

Basic calculations (n = 81109875)

Multiplication

n×y
n×2 162219750
n×3 243329625
n×4 324439500
n×5 405549375

Division

n÷y
n÷2 40554937.5
n÷3 27036625
n÷3 20277468.75
n÷5 16221975

Exponentiation

ny
n2 6578811822515625
n3 5.3360660457276E+23
n4 4.3280764996071E+31
n5 3.5104974387357E+39

Nth Root

y√n
2√n 9006.1020980222
3√n 432.87042118221
4√n 94.900485235968
5√n 38.178138262143

Divisors of 81109875

1, 11, 25, 53, 105, 275, 583, 1155, 1325, 2625, 2809, 5565, 14575, 28875, 30899, 61215, 70225, 139125, 294945, 772475, 1530375, 3244395, 7373625, 81109875

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 -81109874
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 81109875 can be divided by 24 positive divisors. The sum of these divisors (counting 81109875) is 1, the average is 0.041666666666667.

Base conversion 81109875

Base System Value
2 Binary 100110101011010001101110011
3 Ternary 12122121210211110
4 Quaternary 10311122031303
5 Quinary 131231004000
6 Senary 12014244403
8 Octal 465321563
10 Decimal 81109875
12 Duodecimal 231b6703
16 Hexadecimal 4d5a373
20 Vigesimal 156iedf
36 Base36 1cags3

Cryptographic Hash Functions

md5 77cc39843df88663692c61a31eac259c
sha1 159325a40a86760553e945a351946a7367bf47ea
sha256 d476d57b59a1c51069e8efaa77ccc8cfab656901cedb651deb3c4e212d70ed35
sha512 95c7e1a12f08db4193a0b29d16301244f157479a008b1db2b8b4547c8d36a877dcc6d8b2c2bf8c942a4c235104c5da88bba925b6e16d27ed157cad96241a31b0
ripemd-160 11b01335857ca3d81eef6148e7081a43e93df01b

81109875 as geometric shapes

Circle

Radius = n
Diameter 162219750
Circumference 509628374.86717
Area 2.0667946890965E+16

Sphere

Radius = n
Volume 2.2351661184437E+24
Surface area 8.2671787563859E+16
Circumference 509628374.86717

Square

Length = n
Perimeter 324439500
Area 6578811822515625
Diagonal 114706685.26739

Cube

Length = n
Surface area 39472870935093750
Volume 5.3360660457276E+23
Space diagonal 140486424.49556

Equilateral Triangle

Length = n
Perimeter 243329625
Area 2.848709082508E+15
Altitude 70243212.24778

Triangular Pyramid

Length = n
Surface area 2.848709082508E+15
Volume 6.2886141429888E+22
Height 38235561.755795