81124290 (number)

81124290 is an even 8-digits composite number following 81124289 and preceding 81124291. In scientific notation, it is written as 8.1124290 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 19968768 positive integers (up to 81124290) that are relatively prime to 81124290.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-four thousand two hundred ninety

Notation

Scientific notation 8.1124290 × 10^7
Engineering notation 8.1124290 × 10^6

Prime Factorization of 81124290

Prime Factorization 2 × 39 × 3 × 5 × 69337

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81124290
Product of the distinct prime numbers

The prime factorization of 81124290 is 2 × 39 × 3 × 5 × 69337. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 7, 25, 64, 717, 28, 10000, 3381, 38385, 89184, 665824, 414243, 5214199, 2652231, 10466469, 18700074, 254581528, 356213454, 2235789350, 2593836819

Basic calculations (n = 81124290)

Multiplication

n×y
n×2 162248580
n×3 243372870
n×4 324497160
n×5 405621450

Division

n÷y
n÷2 40562145
n÷3 27041430
n÷3 20281072.5
n÷5 16224858

Exponentiation

ny
n2 6581150428004100
n3 5.3389115585503E+23
n4 4.3311540956019E+31
n5 3.5136180088629E+39

Nth Root

y√n
2√n 9006.9023531956
3√n 432.89606317918
4√n 94.904701428304
5√n 38.179495183836

Divisors of 81124290

1, 2, 3, 5, 6, 10, 15, 30, 39, 78, 117, 195, 234, 390, 585, 1170, 69337, 138674, 208011, 346685, 416022, 693370, 1040055, 2080110, 2704143, 5408286, 8112429, 13520715, 16224858, 27041430, 40562145, 81124290

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81124289
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81124290 can be divided by 32 positive divisors. The sum of these divisors (counting 81124290) is 1, the average is 0.03125.

Base conversion 81124290

Base System Value
2 Binary 100110101011101101111000010
3 Ternary 12122122112121100
4 Quaternary 10311131233002
5 Quinary 131231434130
6 Senary 12014435230
8 Octal 465355702
10 Decimal 81124290
12 Duodecimal 23202b16
16 Hexadecimal 4d5dbc2
20 Vigesimal 1570aea
36 Base36 1carwi

Cryptographic Hash Functions

md5 9f3a6f96d799932e97bae134bf48cbba
sha1 036dda0f91460c6d22639fcd39524b02dbb595fd
sha256 7889bf56b7cf259ae62269d97f4c65dbea64b148fa9f94d0a38c46ab6171b59a
sha512 be08886aa86455fe454e7b4499568daa945a1e158807f9c47513544aba9f2f36d81e31b0f91ed178aa5c2177a10bf4da8ab494ff44c0ca2cce73a480fb4f0307
ripemd-160 26b905f8fc5a7ff4d8c83955227e48f769482be4

81124290 as geometric shapes

Circle

Radius = n
Diameter 162248580
Circumference 509718946.98338
Area 2.0675293836787E+16

Sphere

Radius = n
Volume 2.2363580440676E+24
Surface area 8.2701175347148E+16
Circumference 509718946.98338

Square

Length = n
Perimeter 324497160
Area 6581150428004100
Diagonal 114727071.15589

Cube

Length = n
Surface area 39486902568024600
Volume 5.3389115585503E+23
Space diagonal 140511392.00795

Equilateral Triangle

Length = n
Perimeter 243372870
Area 2.8497217283892E+15
Altitude 70255696.003976

Triangular Pyramid

Length = n
Surface area 2.8497217283892E+15
Volume 6.2919676120102E+22
Height 38242357.051963