81290210 (number)

81290210 is an even 8-digits composite number following 81290209 and preceding 81290211. In scientific notation, it is written as 8.1290210 × 10^7. The sum of its digits is 23. It has a total of 5 prime factors and 32 positive divisors. There are 31344768 positive integers (up to 81290210) that are relatively prime to 81290210.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety thousand two hundred ten

Notation

Scientific notation 8.1290210 × 10^7
Engineering notation 8.1290210 × 10^6

Prime Factorization of 81290210

Prime Factorization 2 × 5 × 43 × 79 × 2393

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81290210
Product of the distinct prime numbers

The prime factorization of 81290210 is 2 × 5 × 43 × 79 × 2393. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 3, 52, 100, 426, 199, 487, 3768, 54498, 54077, 982063, 61309, 1007693, 7543955, 26293393, 4599847, 426804441, 44786326, 1637525963, 7835691410

Basic calculations (n = 81290210)

Multiplication

n×y
n×2 162580420
n×3 243870630
n×4 325160840
n×5 406451050

Division

n÷y
n÷2 40645105
n÷3 27096736.666667
n÷3 20322552.5
n÷5 16258042

Exponentiation

ny
n2 6608098241844100
n3 5.3717369378014E+23
n4 4.3666962373863E+31
n5 3.5496965414334E+39

Nth Root

y√n
2√n 9016.1083622592
3√n 433.19099006545
4√n 94.953190374306
5√n 38.195099796763

Divisors of 81290210

1, 2, 5, 10, 43, 79, 86, 158, 215, 395, 430, 790, 2393, 3397, 4786, 6794, 11965, 16985, 23930, 33970, 102899, 189047, 205798, 378094, 514495, 945235, 1028990, 1890470, 8129021, 16258042, 40645105, 81290210

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 -81290209
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 81290210 can be divided by 32 positive divisors. The sum of these divisors (counting 81290210) is 1, the average is 0.03125.

Base conversion 81290210

Base System Value
2 Binary 100110110000110001111100010
3 Ternary 12122221222012112
4 Quaternary 10312012033202
5 Quinary 131302241320
6 Senary 12022155322
8 Octal 466061742
10 Decimal 81290210
12 Duodecimal 23282b42
16 Hexadecimal 4d863e2
20 Vigesimal 15815aa
36 Base36 1cebxe

Cryptographic Hash Functions

md5 330c229414028f084d705e22d70876f7
sha1 1d474982967db971d23948beb4b21b62952c77af
sha256 2a8515ae3bed543b4baaed1a835ddbd83dff4391f6296c5a2a92c7ae5e482059
sha512 011c04cc71976c6e86bfec3759517cb3063b4bc47c559d1d8ebeb5b8a8cf732cbba15e48437490665e076362dc521bb3c9ebb767422b437b718ff3a052a4e03a
ripemd-160 9a8f6eebb3f659bf6d3bfad53e7831980f2a2d57

81290210 as geometric shapes

Circle

Radius = n
Diameter 162580420
Circumference 510761453.08954
Area 2.0759952890777E+16

Sphere

Radius = n
Volume 2.2501079067752E+24
Surface area 8.3039811563108E+16
Circumference 510761453.08954

Square

Length = n
Perimeter 325160840
Area 6608098241844100
Diagonal 114961717.47016

Cube

Length = n
Surface area 39648589451064600
Volume 5.3717369378014E+23
Space diagonal 140798773.87794

Equilateral Triangle

Length = n
Perimeter 243870630
Area 2.8613904740701E+15
Altitude 70399386.938972

Triangular Pyramid

Length = n
Surface area 2.8613904740701E+15
Volume 6.3306526924494E+22
Height 38320572.490052