81423909 (number)

81423909 is an odd 8-digits composite number following 81423908 and preceding 81423910. In scientific notation, it is written as 8.1423909 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 43787520 positive integers (up to 81423909) that are relatively prime to 81423909.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred twenty-three thousand nine hundred nine

Notation

Scientific notation 8.1423909 × 10^7
Engineering notation 8.1423909 × 10^6

Prime Factorization of 81423909

Prime Factorization 9 × 29 × 7 × 41 × 1087

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81423909
Product of the distinct prime numbers

The prime factorization of 81423909 is 9 × 29 × 7 × 41 × 1087. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 10, 14, 51, 396, 356, 8477, 3760, 91258, 78581, 846731, 94003, 294596, 5102981, 14273404, 66185042, 810026731, 804376306, 2239161309, 6554712886

Basic calculations (n = 81423909)

Multiplication

n×y
n×2 162847818
n×3 244271727
n×4 325695636
n×5 407119545

Division

n÷y
n÷2 40711954.5
n÷3 27141303
n÷3 20355977.25
n÷5 16284781.8

Exponentiation

ny
n2 6629852956840281
n3 5.3982854384114E+23
n4 4.3954950229324E+31
n5 3.578983867572E+39

Nth Root

y√n
2√n 9023.5197678068
3√n 433.42835148444
4√n 94.992208984773
5√n 38.207655528563

Divisors of 81423909

1, 7, 9, 29, 41, 63, 203, 261, 287, 369, 1087, 1189, 1827, 2583, 7609, 8323, 9783, 10701, 31523, 44567, 68481, 74907, 220661, 283707, 311969, 401103, 1292443, 1985949, 2807721, 9047101, 11631987, 81423909

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 -81423908
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 81423909 can be divided by 32 positive divisors. The sum of these divisors (counting 81423909) is 1, the average is 0.03125.

Base conversion 81423909

Base System Value
2 Binary 100110110100110111000100101
3 Ternary 12200012202121100
4 Quaternary 10312212320211
5 Quinary 131321031114
6 Senary 12025110313
8 Octal 466467045
10 Decimal 81423909
12 Duodecimal 23328399
16 Hexadecimal 4da6e25
20 Vigesimal 158hjf9
36 Base36 1ch739

Cryptographic Hash Functions

md5 7f76b8ad550b9756175eed5960499d6b
sha1 b98e8ffff369199775436cb1258d3178e2ab2219
sha256 2774c26c37e29d03ab96e9e5241e4b01d8568179753280ece31c21eb52aec67e
sha512 fba62b5e46e05f58311ca011ad2b22ef027f09ee97130fc1fc57d51ca0cded29a2300469d73fb96e507830ac679a9a5ad503eb9d426ea40ec8f602fab6201c17
ripemd-160 5f3869cd77e155533688e4138807ff648da82fda

81423909 as geometric shapes

Circle

Radius = n
Diameter 162847818
Circumference 511601508.68193
Area 2.082829734359E+16

Sphere

Radius = n
Volume 2.2612285167059E+24
Surface area 8.331318937436E+16
Circumference 511601508.68193

Square

Length = n
Perimeter 325695636
Area 6629852956840281
Diagonal 115150796.40923

Cube

Length = n
Surface area 39779117741041686
Volume 5.3982854384114E+23
Space diagonal 141030347.33886

Equilateral Triangle

Length = n
Perimeter 244271727
Area 2.8708105419895E+15
Altitude 70515173.669432

Triangular Pyramid

Length = n
Surface area 2.8708105419895E+15
Volume 6.3619404004689E+22
Height 38383598.803078