81306005 (number)

81306005 is an odd 8-digits composite number following 81306004 and preceding 81306006. In scientific notation, it is written as 8.1306005 × 10^7. The sum of its digits is 23. It has a total of 5 prime factors and 32 positive divisors. There are 56929600 positive integers (up to 81306005) that are relatively prime to 81306005.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred six thousand five

Notation

Scientific notation 8.1306005 × 10^7
Engineering notation 8.1306005 × 10^6

Prime Factorization of 81306005

Prime Factorization 5 × 11 × 71 × 443 × 47

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81306005
Product of the distinct prime numbers

The prime factorization of 81306005 is 5 × 11 × 71 × 443 × 47. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 9, 61, 81, 956, 732, 7886, 3656, 83024, 41118, 500628, 240751, 1284945, 9177032, 9406837, 39107864, 389833900, 696361394, 9292226141, 5942280875

Basic calculations (n = 81306005)

Multiplication

n×y
n×2 162612010
n×3 243918015
n×4 325224020
n×5 406530025

Division

n÷y
n÷2 40653002.5
n÷3 27102001.666667
n÷3 20326501.25
n÷5 16261201

Exponentiation

ny
n2 6610666449060025
n3 5.3748687936061E+23
n4 4.3700910900728E+31
n5 3.5531464801991E+39

Nth Root

y√n
2√n 9016.9842519548
3√n 433.21904513948
4√n 94.957802480653
5√n 38.196583972331

Divisors of 81306005

1, 5, 11, 47, 55, 71, 235, 355, 443, 517, 781, 2215, 2585, 3337, 3905, 4873, 16685, 20821, 24365, 31453, 36707, 104105, 157265, 183535, 229031, 345983, 1145155, 1478291, 1729915, 7391455, 16261201, 81306005

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 -81306004
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 81306005 can be divided by 32 positive divisors. The sum of these divisors (counting 81306005) is 1, the average is 0.03125.

Base conversion 81306005

Base System Value
2 Binary 100110110001010000110010101
3 Ternary 12122222202212112
4 Quaternary 10312022012111
5 Quinary 131303243010
6 Senary 12022400405
8 Octal 466120625
10 Decimal 81306005
12 Duodecimal 23290105
16 Hexadecimal 4d8a195
20 Vigesimal 1583505
36 Base36 1ceo45

Cryptographic Hash Functions

md5 f2233bf4c55ff8fd3fb6e14dec50f740
sha1 20f49999b7ae8a852fe0ada238bf570f670f5fd1
sha256 93e4207cbc8888586692067779554fa14f8aea9868586272a5a7dca632d80654
sha512 3f8e9dd98732f68ae21d7b35a4f8a7185179f1fbfda10b01e6cd71cbe814ab00e3edef86952e09607ae0530d4a46a12f0b52cc5a40853f0ba1d4de89411f34ad
ripemd-160 555f9d4ae4741b244b4122ec2cba505691e826d1

81306005 as geometric shapes

Circle

Radius = n
Diameter 162612010
Circumference 510860696.00147
Area 2.07680211517E+16

Sphere

Radius = n
Volume 2.2514197754669E+24
Surface area 8.3072084606798E+16
Circumference 510860696.00147

Square

Length = n
Perimeter 325224020
Area 6610666449060025
Diagonal 114984054.97337

Cube

Length = n
Surface area 39663998694360150
Volume 5.3748687936061E+23
Space diagonal 140826131.62045

Equilateral Triangle

Length = n
Perimeter 243918015
Area 2.8625025404157E+15
Altitude 70413065.810225

Triangular Pyramid

Length = n
Surface area 2.8625025404157E+15
Volume 6.3343436199113E+22
Height 38328018.324458