81090250 (number)

81090250 is an even 8-digits composite number following 81090249 and preceding 81090251. In scientific notation, it is written as 8.1090250 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors. There are 32436000 positive integers (up to 81090250) that are relatively prime to 81090250.

Interesting facts

Basic properties

Name

Name eighty-one million ninety thousand two hundred fifty

Notation

Scientific notation 8.1090250 × 10^7
Engineering notation 8.1090250 × 10^6

Prime Factorization of 81090250

Prime Factorization 2 × 5 × 5 × 5 × 324361

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 3243610
Product of the distinct prime numbers

The prime factorization of 81090250 is 2 × 5 × 5 × 5 × 324361. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 6, 35, 39, 593, 488, 2133, 4023, 6757, 114, 799046, 837188, 7641401, 5501148, 52313595, 78272595, 161823593, 524502823, 5990535020, 4260303146

Basic calculations (n = 81090250)

Multiplication

n×y
n×2 162180500
n×3 243270750
n×4 324361000
n×5 405451250

Division

n÷y
n÷2 40545125
n÷3 27030083.333333
n÷3 20272562.5
n÷5 16218050

Exponentiation

ny
n2 6575628645062500
n3 5.3321937073528E+23
n4 4.3238892077766E+31
n5 3.5062525683091E+39

Nth Root

y√n
2√n 9005.0124930507
3√n 432.83550653813
4√n 94.894744285712
5√n 38.176290599358

Divisors of 81090250

1, 2, 5, 10, 25, 50, 125, 250, 324361, 648722, 1621805, 3243610, 8109025, 16218050, 40545125, 81090250

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 -81090249
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 81090250 can be divided by 16 positive divisors. The sum of these divisors (counting 81090250) is 1, the average is 0.0625.

Base conversion 81090250

Base System Value
2 Binary 100110101010101011011001010
3 Ternary 12122120210220121
4 Quaternary 10311111123022
5 Quinary 131224342000
6 Senary 12014013454
8 Octal 465253312
10 Decimal 81090250
12 Duodecimal 231a728a
16 Hexadecimal 4d556ca
20 Vigesimal 156g5ca
36 Base36 1ca1my

Cryptographic Hash Functions

md5 2d1b403faf126d54c8d85dbaafb13e20
sha1 a0ca9dcfc095b21d43f7aa177d3337815308ee44
sha256 407c583b4785b91a4bd18f566f0e34c903c8c2e3f3df21d6fb7dbf4cba1c1ba1
sha512 e7f6097ff6ad7a7bca0515f57c16587ed31ff2014cec60371678367c863f0c6522d9d38089fa040fd10e5e51546caae51bf9045b210410969f59927683770f3a
ripemd-160 6267503bc40dcab9e2a0025b5837bb2b7d5c6511

81090250 as geometric shapes

Circle

Radius = n
Diameter 162180500
Circumference 509505067.35552
Area 2.0657946644063E+16

Sphere

Radius = n
Volume 2.2335440771383E+24
Surface area 8.2631786576252E+16
Circumference 509505067.35552

Square

Length = n
Perimeter 324361000
Area 6575628645062500
Diagonal 114678931.32622

Cube

Length = n
Surface area 39453771870375000
Volume 5.3321937073528E+23
Space diagonal 140452432.99846

Equilateral Triangle

Length = n
Perimeter 243270750
Area 2.8473307262384E+15
Altitude 70226216.499231

Triangular Pyramid

Length = n
Surface area 2.8473307262384E+15
Volume 6.284050548449E+22
Height 38226310.442075