81090210 (number)

81090210 is an even 8-digits composite number following 81090209 and preceding 81090211. In scientific notation, it is written as 8.1090210 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 21096320 positive integers (up to 81090210) that are relatively prime to 81090210.

Interesting facts

Basic properties

Name

Name eighty-one million ninety thousand two hundred ten

Notation

Scientific notation 8.1090210 × 10^7
Engineering notation 8.1090210 × 10^6

Prime Factorization of 81090210

Prime Factorization 2 × 15 × 41 × 65927

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81090210
Product of the distinct prime numbers

The prime factorization of 81090210 is 2 × 15 × 41 × 65927. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 34, 65, 242, 531, 9352, 7694, 7437, 96182, 322857, 247128, 7946197, 7170565, 63992823, 99478441, 867896297, 183305284, 7995839072, 4483675181

Basic calculations (n = 81090210)

Multiplication

n×y
n×2 162180420
n×3 243270630
n×4 324360840
n×5 405451050

Division

n÷y
n÷2 40545105
n÷3 27030070
n÷3 20272552.5
n÷5 16218042

Exponentiation

ny
n2 6575622157844100
n3 5.3321858166023E+23
n4 4.323880676273E+31
n5 3.5062439205392E+39

Nth Root

y√n
2√n 9005.0102720652
3√n 432.83543536877
4√n 94.894732583348
5√n 38.176286833056

Divisors of 81090210

1, 2, 15, 30, 41, 82, 615, 1230, 65927, 131854, 988905, 1977810, 2703007, 5406014, 40545105, 81090210

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81090209
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81090210 can be divided by 16 positive divisors. The sum of these divisors (counting 81090210) is 1, the average is 0.0625.

Base conversion 81090210

Base System Value
2 Binary 100110101010101011010100010
3 Ternary 12122120210212010
4 Quaternary 10311111122202
5 Quinary 131224341320
6 Senary 12014013350
8 Octal 465253242
10 Decimal 81090210
12 Duodecimal 231a7256
16 Hexadecimal 4d556a2
20 Vigesimal 156g5aa
36 Base36 1ca1lu

Cryptographic Hash Functions

md5 2b7e5f3de73eb56175164e191b504369
sha1 e9b3719dfa67e66f43458c97729ed064012b0578
sha256 179c8a061dd00827625dae169898242230eceef23212e81c7342b60d7e7e5d8b
sha512 ae89f1bc8d46b478bd2d15cf7c101b6c69ad801186bc0edba7e8c00a462bc8cd0a7b9352e6608b544d5d1af980cd4cd64314f3be7724b1e4341567d1e95f8d67
ripemd-160 ac9e5c599e5068bb5c0701f99081074211717839

81090210 as geometric shapes

Circle

Radius = n
Diameter 162180420
Circumference 509504816.02811
Area 2.0657926263865E+16

Sphere

Radius = n
Volume 2.2335407718685E+24
Surface area 8.2631705055461E+16
Circumference 509504816.02811

Square

Length = n
Perimeter 324360840
Area 6575622157844100
Diagonal 114678874.75768

Cube

Length = n
Surface area 39453732947064600
Volume 5.3321858166023E+23
Space diagonal 140452363.71643

Equilateral Triangle

Length = n
Perimeter 243270630
Area 2.8473279171904E+15
Altitude 70226181.858215

Triangular Pyramid

Length = n
Surface area 2.8473279171904E+15
Volume 6.2840412491104E+22
Height 38226291.585894