81489130 (number)

81489130 is an even 8-digits composite number following 81489129 and preceding 81489131. In scientific notation, it is written as 8.1489130 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 31471552 positive integers (up to 81489130) that are relatively prime to 81489130.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand one hundred thirty

Notation

Scientific notation 8.1489130 × 10^7
Engineering notation 8.1489130 × 10^6

Prime Factorization of 81489130

Prime Factorization 2 × 5 × 29 × 280997

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81489130
Product of the distinct prime numbers

The prime factorization of 81489130 is 2 × 5 × 29 × 280997. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 60, 85, 455, 434, 2561, 3227, 48787, 7556, 711061, 412041, 8443788, 1865545, 25035818, 41534939, 575654416, 693171122, 1015306356, 6903857402

Basic calculations (n = 81489130)

Multiplication

n×y
n×2 162978260
n×3 244467390
n×4 325956520
n×5 407445650

Division

n÷y
n÷2 40744565
n÷3 27163043.333333
n÷3 20372282.5
n÷5 16297826

Exponentiation

ny
n2 6640478308156900
n3 5.4112680011558E+23
n4 4.4095952161102E+31
n5 3.5933407781298E+39

Nth Root

y√n
2√n 9027.1329889395
3√n 433.54404676542
4√n 95.011225594345
5√n 38.213774476896

Divisors of 81489130

1, 2, 5, 10, 29, 58, 145, 290, 280997, 561994, 1404985, 2809970, 8148913, 16297826, 40744565, 81489130

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 -81489129
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 81489130 can be divided by 16 positive divisors. The sum of these divisors (counting 81489130) is 1, the average is 0.0625.

Base conversion 81489130

Base System Value
2 Binary 100110110110110110011101010
3 Ternary 12200100002001221
4 Quaternary 10312312303222
5 Quinary 131330123010
6 Senary 12030332254
8 Octal 466666352
10 Decimal 81489130
12 Duodecimal 2335a08a
16 Hexadecimal 4db6cea
20 Vigesimal 15962ga
36 Base36 1ciley

Cryptographic Hash Functions

md5 d79261efd7fa498ca6f1950063f67a85
sha1 ee0d60993591b5c156496addcbdd2ecb2c24bafb
sha256 8e21b32ce327fecb89cd87eddb0d81adc24c5f5a8e75ab3ae0733e80449e8139
sha512 f3101aefaf52ad07faa1f3d296ef3299140315a777154d87980df60a16f3b613f3dbb7741b57f625e23e1f9b6f957539fbece8d8a67fba655ef4ded1ae350549
ripemd-160 996e130edd9ee228a1deaaae42c30fea03382f23

81489130 as geometric shapes

Circle

Radius = n
Diameter 162978260
Circumference 512011304.31085
Area 2.0861677869228E+16

Sphere

Radius = n
Volume 2.2666666398715E+24
Surface area 8.3446711476912E+16
Circumference 512011304.31085

Square

Length = n
Perimeter 325956520
Area 6640478308156900
Diagonal 115243032.83198

Cube

Length = n
Surface area 39842869848941400
Volume 5.4112680011558E+23
Space diagonal 141143313.42459

Equilateral Triangle

Length = n
Perimeter 244467390
Area 2.8754114540717E+15
Altitude 70571656.712293

Triangular Pyramid

Length = n
Surface area 2.8754114540717E+15
Volume 6.3772404973917E+22
Height 38414344.277328