81290211 (number)

81290211 is an odd 8-digits composite number following 81290210 and preceding 81290212. In scientific notation, it is written as 8.1290211 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 51741536 positive integers (up to 81290211) that are relatively prime to 81290211.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1290211 × 10^7
Engineering notation 8.1290211 × 10^6

Prime Factorization of 81290211

Prime Factorization 3 × 23 × 1163 × 1013

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81290211
Product of the distinct prime numbers

The prime factorization of 81290211 is 3 × 23 × 1163 × 1013. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 8, 72, 12, 378, 549, 5713, 2234, 4045, 41619, 320729, 204746, 523778, 8470165, 98852765, 78900088, 838427637, 458514683, 3837193193, 5623723052

Basic calculations (n = 81290211)

Multiplication

n×y
n×2 162580422
n×3 243870633
n×4 325160844
n×5 406451055

Division

n÷y
n÷2 40645105.5
n÷3 27096737
n÷3 20322552.75
n÷5 16258042.2

Exponentiation

ny
n2 6608098404424521
n3 5.3717371360443E+23
n4 4.3666964522558E+31
n5 3.5496967597682E+39

Nth Root

y√n
2√n 9016.1084177155
3√n 433.19099184177
4√n 94.953190666325
5√n 38.195099890735

Divisors of 81290211

1, 3, 23, 69, 1013, 1163, 3039, 3489, 23299, 26749, 69897, 80247, 1178119, 3534357, 27096737, 81290211

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 -81290210
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 81290211 can be divided by 16 positive divisors. The sum of these divisors (counting 81290211) is 1, the average is 0.0625.

Base conversion 81290211

Base System Value
2 Binary 100110110000110001111100011
3 Ternary 12122221222012120
4 Quaternary 10312012033203
5 Quinary 131302241321
6 Senary 12022155323
8 Octal 466061743
10 Decimal 81290211
12 Duodecimal 23282b43
16 Hexadecimal 4d863e3
20 Vigesimal 15815ab
36 Base36 1cebxf

Cryptographic Hash Functions

md5 806e747c0d67d583c2d17f88aa384006
sha1 bc45b5ec11af769dc9071c4246a07212d5f8ba09
sha256 b59e30b8506abb8af83dba2bc4af3c6aa24c539eda01d9a4a9aafd39996871cd
sha512 78e5c7ece6adc78aa9126aa45fcde04f6a5ca71b2bfd6fa3149da6bb38e3ca8ccbecab1513cd84e7b266269e28770403e4fffb58fda3d9aeca38063fa5a975c1
ripemd-160 babd8a996e9ee1057b11ca34057ef89f56f170e7

81290211 as geometric shapes

Circle

Radius = n
Diameter 162580422
Circumference 510761459.37273
Area 2.0759953401539E+16

Sphere

Radius = n
Volume 2.250107989815E+24
Surface area 8.3039813606154E+16
Circumference 510761459.37273

Square

Length = n
Perimeter 325160844
Area 6608098404424521
Diagonal 114961718.88437

Cube

Length = n
Surface area 39648590426547126
Volume 5.3717371360443E+23
Space diagonal 140798775.60999

Equilateral Triangle

Length = n
Perimeter 243870633
Area 2.8613905444695E+15
Altitude 70399387.804997

Triangular Pyramid

Length = n
Surface area 2.8613905444695E+15
Volume 6.3306529260809E+22
Height 38320572.961457