81090149 (number)

81090149 is an odd 8-digits composite number following 81090148 and preceding 81090150. In scientific notation, it is written as 8.1090149 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 68826744 positive integers (up to 81090149) that are relatively prime to 81090149.

Interesting facts

Basic properties

Name

Name eighty-one million ninety thousand one hundred forty-nine

Notation

Scientific notation 8.1090149 × 10^7
Engineering notation 8.1090149 × 10^6

Prime Factorization of 81090149

Prime Factorization 7 × 7 × 103 × 16067

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 11584307
Product of the distinct prime numbers

The prime factorization of 81090149 is 7 × 7 × 103 × 16067. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 53, 13, 613, 247, 395, 5192, 58615, 82078, 396639, 58816, 6660168, 9950765, 75509721, 61225236, 292164589, 538920804, 7033014378, 6489278180

Basic calculations (n = 81090149)

Multiplication

n×y
n×2 162180298
n×3 243270447
n×4 324360596
n×5 405450745

Division

n÷y
n÷2 40545074.5
n÷3 27030049.666667
n÷3 20272537.25
n÷5 16218029.8

Exponentiation

ny
n2 6575612264842201
n3 5.3321737832228E+23
n4 4.3238676657543E+31
n5 3.506230732723E+39

Nth Root

y√n
2√n 9005.0068850612
3√n 432.83532683545
4√n 94.894714737235
5√n 38.176281089442

Divisors of 81090149

1, 7, 49, 103, 721, 5047, 16067, 112469, 787283, 1654901, 11584307, 81090149

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81090148
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81090149 can be divided by 12 positive divisors. The sum of these divisors (counting 81090149) is 1, the average is 0.083333333333333.

Base conversion 81090149

Base System Value
2 Binary 100110101010101011001100101
3 Ternary 12122120210202212
4 Quaternary 10311111121211
5 Quinary 131224341044
6 Senary 12014013205
8 Octal 465253145
10 Decimal 81090149
12 Duodecimal 231a7205
16 Hexadecimal 4d55665
20 Vigesimal 156g579
36 Base36 1ca1k5

Cryptographic Hash Functions

md5 588043d932e5c711d92889a856974808
sha1 636188357e00388d536648b9f6f92e703470c828
sha256 bedaa9f4bfaab5cf5e1331e23ef22cf6279ac4d262f8ecba1b5693d425d9c30c
sha512 b3822eda6745cdff0c4155d4accd9436c25a4150784c29bbf3aa208f35a56738028820879e3ec5690416884dde58d4b111d58122d916c6eab5671d13da19f5c7
ripemd-160 d2db6d23f26bfcb426b52aafab1385fad57d012a

81090149 as geometric shapes

Circle

Radius = n
Diameter 162180298
Circumference 509504432.7538
Area 2.0657895184083E+16

Sphere

Radius = n
Volume 2.2335357313383E+24
Surface area 8.2631580736333E+16
Circumference 509504432.7538

Square

Length = n
Perimeter 324360596
Area 6575612264842201
Diagonal 114678788.49066

Cube

Length = n
Surface area 39453673589053206
Volume 5.3321737832228E+23
Space diagonal 140452258.06133

Equilateral Triangle

Length = n
Perimeter 243270447
Area 2.8473236333949E+15
Altitude 70226129.030665

Triangular Pyramid

Length = n
Surface area 2.8473236333949E+15
Volume 6.2840270676366E+22
Height 38226262.830218