81105964 (number)

81105964 is an even 8-digits composite number following 81105963 and preceding 81105965. In scientific notation, it is written as 8.1105964 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 40402800 positive integers (up to 81105964) that are relatively prime to 81105964.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred five thousand nine hundred sixty-four

Notation

Scientific notation 8.1105964 × 10^7
Engineering notation 8.1105964 × 10^6

Prime Factorization of 81105964

Prime Factorization 2 × 2 × 271 × 74821

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40552982
Product of the distinct prime numbers

The prime factorization of 81105964 is 2 × 2 × 271 × 74821. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 8, 45, 60, 768, 853, 4164, 5874, 77195, 26772, 998473, 727525, 8800494, 9000170, 66344130, 85959401, 136684759, 976609361, 7614899449, 7808298883

Basic calculations (n = 81105964)

Multiplication

n×y
n×2 162211928
n×3 243317892
n×4 324423856
n×5 405529820

Division

n÷y
n÷2 40552982
n÷3 27035321.333333
n÷3 20276491
n÷5 16221192.8

Exponentiation

ny
n2 6578177396369296
n3 5.3352941909554E+23
n4 4.3272417858104E+31
n5 3.5096511649923E+39

Nth Root

y√n
2√n 9005.8849648438
3√n 432.86346361004
4√n 94.899341224499
5√n 38.177770076201

Divisors of 81105964

1, 2, 4, 271, 542, 1084, 74821, 149642, 299284, 20276491, 40552982, 81105964

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 -81105963
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 81105964 can be divided by 12 positive divisors. The sum of these divisors (counting 81105964) is 1, the average is 0.083333333333333.

Base conversion 81105964

Base System Value
2 Binary 100110101011001010000101100
3 Ternary 12122121121110121
4 Quaternary 10311121100230
5 Quinary 131230342324
6 Senary 12014214324
8 Octal 465312054
10 Decimal 81105964
12 Duodecimal 231b43a4
16 Hexadecimal 4d5942c
20 Vigesimal 156i4i4
36 Base36 1cadrg

Cryptographic Hash Functions

md5 af775cf53278eb78b1e02936e32b9b45
sha1 6acdefb4fbb50812f9e977374ca1bde83be986d9
sha256 82966e131cbed738cfdb78c4ebd234c0295ebebfa0d0377799e68c85a2b5d1eb
sha512 18e9f6abbe87776aa9b413247203441ad46fac76af1cf588887d31b7ad9d4fa4714efb3c8cd83b0e08cb21d1b30f4301a2c4d30348ca17b9d469f38c33de18cf
ripemd-160 c6bc16271d0a22e235551316cc21d0ba50700d64

81105964 as geometric shapes

Circle

Radius = n
Diameter 162211928
Circumference 509603801.32944
Area 2.0665953782444E+16

Sphere

Radius = n
Volume 2.2348428046728E+24
Surface area 8.2663815129777E+16
Circumference 509603801.32944

Square

Length = n
Perimeter 324423856
Area 6578177396369296
Diagonal 114701154.27814

Cube

Length = n
Surface area 39469064378215776
Volume 5.3352941909554E+23
Space diagonal 140479650.44485

Equilateral Triangle

Length = n
Perimeter 243317892
Area 2.8484343679282E+15
Altitude 70239825.222426

Triangular Pyramid

Length = n
Surface area 2.8484343679282E+15
Volume 6.2877045034163E+22
Height 38233718.092715