81124590 (number)

81124590 is an even 8-digits composite number following 81124589 and preceding 81124591. In scientific notation, it is written as 8.1124590 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 21510944 positive integers (up to 81124590) that are relatively prime to 81124590.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1124590 × 10^7
Engineering notation 8.1124590 × 10^6

Prime Factorization of 81124590

Prime Factorization 2 × 15 × 179 × 15107

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81124590
Product of the distinct prime numbers

The prime factorization of 81124590 is 2 × 15 × 179 × 15107. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 38, 84, 916, 932, 6217, 2344, 20906, 95121, 564904, 443519, 9591042, 4255775, 64590381, 63548151, 125215774, 746411635, 1612853504, 4355016191

Basic calculations (n = 81124590)

Multiplication

n×y
n×2 162249180
n×3 243373770
n×4 324498360
n×5 405622950

Division

n÷y
n÷2 40562295
n÷3 27041530
n÷3 20281147.5
n÷5 16224918

Exponentiation

ny
n2 6581199102668100
n3 5.3389707891232E+23
n4 4.3312181628959E+31
n5 3.5136829766549E+39

Nth Root

y√n
2√n 9006.9190070745
3√n 432.8965967993
4√n 94.904789168274
5√n 38.179523421572

Divisors of 81124590

1, 2, 15, 30, 179, 358, 2685, 5370, 15107, 30214, 226605, 453210, 2704153, 5408306, 40562295, 81124590

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 -81124589
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 81124590 can be divided by 16 positive divisors. The sum of these divisors (counting 81124590) is 1, the average is 0.0625.

Base conversion 81124590

Base System Value
2 Binary 100110101011101110011101110
3 Ternary 12122122120000110
4 Quaternary 10311131303232
5 Quinary 131231441330
6 Senary 12014440450
8 Octal 465356356
10 Decimal 81124590
12 Duodecimal 23203126
16 Hexadecimal 4d5dcee
20 Vigesimal 1570b9a
36 Base36 1cas4u

Cryptographic Hash Functions

md5 2817457277d0f45c9efd6671abf9420f
sha1 9e310432db0d501bc33817823329f0e431bec11c
sha256 1293bebe04b78282a9a50afbe68e5897616b3e05975055680a66fbd8cc335649
sha512 53d6450724d2cd0d2d6f477fb6d11ab5150026aaba21f740e435384df9ac5134aa42d7e523d4520e47d4fd9a0154b11d0620c3bd046c2e78cb507312676c7772
ripemd-160 a57ab4fe363515450e148c9f32347d6b343fcb43

81124590 as geometric shapes

Circle

Radius = n
Diameter 162249180
Circumference 509720831.93897
Area 2.0675446752754E+16

Sphere

Radius = n
Volume 2.236382854512E+24
Surface area 8.2701787011015E+16
Circumference 509720831.93897

Square

Length = n
Perimeter 324498360
Area 6581199102668100
Diagonal 114727495.41996

Cube

Length = n
Surface area 39487194616008600
Volume 5.3389707891232E+23
Space diagonal 140511911.62319

Equilateral Triangle

Length = n
Perimeter 243373770
Area 2.849742805137E+15
Altitude 70255955.811597

Triangular Pyramid

Length = n
Surface area 2.849742805137E+15
Volume 6.2920374159098E+22
Height 38242498.473319