81121109 (number)

81121109 is an odd 8-digits prime number following 81121108 and preceding 81121110. In scientific notation, it is written as 8.1121109 × 10^7. The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors. There are 81121108 positive integers (up to 81121109) that are relatively prime to 81121109.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1121109 × 10^7
Engineering notation 8.1121109 × 10^6

Prime Factorization of 81121109

Prime Factorization 81121109

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81121109
Product of the distinct prime numbers

The prime factorization of 81121109 is 81121109. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 3, 35, 6, 138, 275, 264, 5230, 30733, 23065, 45566, 241599, 6507413, 3450961, 97346191, 33625394, 182681087, 498346596, 1630725701, 8606212217

Basic calculations (n = 81121109)

Multiplication

n×y
n×2 162242218
n×3 243363327
n×4 324484436
n×5 405605545

Division

n÷y
n÷2 40560554.5
n÷3 27040369.666667
n÷3 20280277.25
n÷5 16224221.8

Exponentiation

ny
n2 6580634325389881
n3 5.3382835439909E+23
n4 4.33047481245E+31
n5 3.5129291928251E+39

Nth Root

y√n
2√n 9006.7257646716
3√n 432.8904049463
4√n 94.90377107719
5√n 38.179195764564

Divisors of 81121109

1, 81121109

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81121110
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40560555
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9006.7258201857
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999753455
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81121109 can be divided by 2 positive divisors. The sum of these divisors (counting 81121109) is 81121110, the average is 40560555.

Base conversion 81121109

Base System Value
2 Binary 100110101011100111101010101
3 Ternary 12122122101020112
4 Quaternary 10311130331111
5 Quinary 131231333414
6 Senary 12014412405
8 Octal 465347525
10 Decimal 81121109
12 Duodecimal 23201105
16 Hexadecimal 4d5cf55
20 Vigesimal 15702f9
36 Base36 1capg5

Cryptographic Hash Functions

md5 203b1571ada2e2b9d97f67c1ce108d5e
sha1 2aa4410fe61e1808e076b41b77e947a4f4706e09
sha256 1a06598ddd30395e1ba85166f0adcdf178e02faff85c1eb04cb2314a110d4812
sha512 029f75b65f0f60954b8ad7e1635f9cc142b48641fd62fb53a5286f20d4bae2bd4396e804ed7536452221fbf34adb5e032267ce8ad97d41dbde0b8693789483a6
ripemd-160 770c1b82f1dedb1b578158154ab748e60967bc61

81121109 as geometric shapes

Circle

Radius = n
Diameter 162242218
Circumference 509698960.17091
Area 2.0673672452606E+16

Sphere

Radius = n
Volume 2.2360949819442E+24
Surface area 8.2694689810423E+16
Circumference 509698960.17091

Square

Length = n
Perimeter 324484436
Area 6580634325389881
Diagonal 114722572.54255

Cube

Length = n
Surface area 39483805952339286
Volume 5.3382835439909E+23
Space diagonal 140505882.35433

Equilateral Triangle

Length = n
Perimeter 243363327
Area 2.8494982494018E+15
Altitude 70252941.177166

Triangular Pyramid

Length = n
Surface area 2.8494982494018E+15
Volume 6.2912274897542E+22
Height 38240857.514182