81489235 (number)

81489235 is an odd 8-digits composite number following 81489234 and preceding 81489236. In scientific notation, it is written as 8.1489235 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 62817120 positive integers (up to 81489235) that are relatively prime to 81489235.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1489235 × 10^7
Engineering notation 8.1489235 × 10^6

Prime Factorization of 81489235

Prime Factorization 5 × 31 × 263 × 1999

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81489235
Product of the distinct prime numbers

The prime factorization of 81489235 is 5 × 31 × 263 × 1999. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 38, 99, 912, 669, 376, 9841, 67267, 28214, 446199, 338777, 675700, 2818395, 65625803, 38214574, 795392108, 415929602, 2944588719, 3479451261

Basic calculations (n = 81489235)

Multiplication

n×y
n×2 162978470
n×3 244467705
n×4 325956940
n×5 407446175

Division

n÷y
n÷2 40744617.5
n÷3 27163078.333333
n÷3 20372308.75
n÷5 16297847

Exponentiation

ny
n2 6640495420885225
n3 5.4112889186894E+23
n4 4.4096179434798E+31
n5 3.5933639285644E+39

Nth Root

y√n
2√n 9027.1388047376
3√n 433.54423297474
4√n 95.011256200187
5√n 38.213784324698

Divisors of 81489235

1, 5, 31, 155, 263, 1315, 1999, 8153, 9995, 40765, 61969, 309845, 525737, 2628685, 16297847, 81489235

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 -81489234
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 81489235 can be divided by 16 positive divisors. The sum of these divisors (counting 81489235) is 1, the average is 0.0625.

Base conversion 81489235

Base System Value
2 Binary 100110110110110110101010011
3 Ternary 12200100002012211
4 Quaternary 10312312311103
5 Quinary 131330123420
6 Senary 12030332551
8 Octal 466666523
10 Decimal 81489235
12 Duodecimal 2335a157
16 Hexadecimal 4db6d53
20 Vigesimal 159631f
36 Base36 1cilhv

Cryptographic Hash Functions

md5 5baaeb8d4f1bd5426b9ef4ce18d27e17
sha1 d431b52805ee43f786b9921ed2adf8713bbd418f
sha256 11b004ff12892b9539bc9433bd91a48ee69c7670cf8098683add40e0c2d88ec2
sha512 be2e7beb24eddc24795d7745a469f676866bfbcc64530b8bbaa983558b535b6b9caeb46990347b22bbd03d43f31240d4a48b3cf7bff9ce070c106a34f94c91d5
ripemd-160 87cbdffd2f8d00cda7751d1fef062c9f56ca303b

81489235 as geometric shapes

Circle

Radius = n
Diameter 162978470
Circumference 512011964.0453
Area 2.086173163045E+16

Sphere

Radius = n
Volume 2.2666754017875E+24
Surface area 8.3446926521799E+16
Circumference 512011964.0453

Square

Length = n
Perimeter 325956940
Area 6640495420885225
Diagonal 115243181.32441

Cube

Length = n
Surface area 39842972525311350
Volume 5.4112889186894E+23
Space diagonal 141143495.28992

Equilateral Triangle

Length = n
Perimeter 244467705
Area 2.8754188641004E+15
Altitude 70571747.64496

Triangular Pyramid

Length = n
Surface area 2.8754188641004E+15
Volume 6.3772651489415E+22
Height 38414393.774803