82161720 (number)

82161720 is an even 8-digits composite number following 82161719 and preceding 82161721. In scientific notation, it is written as 8.2161720 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 64 positive divisors. There are 21795840 positive integers (up to 82161720) that are relatively prime to 82161720.

Interesting facts

Basic properties

Name

Name eighty-two million one hundred sixty-one thousand seven hundred twenty

Notation

Scientific notation 8.2161720 × 10^7
Engineering notation 8.2161720 × 10^6

Prime Factorization of 82161720

Prime Factorization 2 × 2 × 2 × 9 × 5 × 947 × 241

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 20540430
Product of the distinct prime numbers

The prime factorization of 82161720 is 2 × 2 × 2 × 9 × 5 × 947 × 241. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 1, 61, 7, 98, 869, 6495, 8052, 16709, 22825, 505132, 392472, 1814106, 3596657, 51988716, 33821541, 754628894, 991433118, 3651812787, 4688926242

Basic calculations (n = 82161720)

Multiplication

n×y
n×2 164323440
n×3 246485160
n×4 328646880
n×5 410808600

Division

n÷y
n÷2 41080860
n÷3 27387240
n÷3 20540430
n÷5 16432344

Exponentiation

ny
n2 6750548233358400
n3 5.5463665379569E+23
n4 4.5569901450898E+31
n5 3.7441014834363E+39

Nth Root

y√n
2√n 9064.3102329962
3√n 434.73356653217
4√n 95.206671158046
5√n 38.276648542876

Divisors of 82161720

1, 2, 4, 5, 8, 9, 10, 18, 20, 36, 40, 45, 72, 90, 180, 241, 360, 482, 947, 964, 1205, 1894, 1928, 2169, 2410, 3788, 4338, 4735, 4820, 7576, 8523, 8676, 9470, 9640, 10845, 17046, 17352, 18940, 21690, 34092, 37880, 42615, 43380, 68184, 85230, 86760, 170460, 228227, 340920, 456454, 912908, 1141135, 1825816, 2054043, 2282270, 4108086, 4564540, 8216172, 9129080, 10270215, 16432344, 20540430, 41080860, 82161720

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -82161719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 82161720 can be divided by 64 positive divisors. The sum of these divisors (counting 82161720) is 1, the average is 0.015625.

Base conversion 82161720

Base System Value
2 Binary 100111001011011000000111000
3 Ternary 12201121020200200
4 Quaternary 10321123000320
5 Quinary 132013133340
6 Senary 12053002200
8 Octal 471330070
10 Decimal 82161720
12 Duodecimal 23623360
16 Hexadecimal 4e5b038
20 Vigesimal 15da460
36 Base36 1cx0e0

Cryptographic Hash Functions

md5 7b2bee0cb47959ef2a43be92de94fcfc
sha1 c0fe31d4ba1f5987862233c61476f8916ff591c4
sha256 1ec540a80dac40d263371714f402815d2c96590f6bf4d27ff6f911ae4fa0bc1e
sha512 d5dbbaa678d386b41adeb728622d773afa8d5eb477f9e937847a8a44a7951a89c52552d8a4dd0573f3adcc5e70293459ef3e14ddbd2e526312b5b861c6ad090d
ripemd-160 251996e687c29558749b83c43dcf4370a2a1f1d2

82161720 as geometric shapes

Circle

Radius = n
Diameter 164323440
Circumference 516237311.9166
Area 2.1207472737622E+16

Sphere

Radius = n
Volume 2.3232565826349E+24
Surface area 8.4829890950489E+16
Circumference 516237311.9166

Square

Length = n
Perimeter 328646880
Area 6750548233358400
Diagonal 116194218.7319

Cube

Length = n
Surface area 40503289400150400
Volume 5.5463665379569E+23
Space diagonal 142308273.47725

Equilateral Triangle

Length = n
Perimeter 246485160
Area 2.9230731297803E+15
Altitude 71154136.738624

Triangular Pyramid

Length = n
Surface area 2.9230731297803E+15
Volume 6.5364556498924E+22
Height 38731406.243967