81424209 (number)

81424209 is an odd 8-digits composite number following 81424208 and preceding 81424210. In scientific notation, it is written as 8.1424209 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors. There are 51921672 positive integers (up to 81424209) that are relatively prime to 81424209.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1424209 × 10^7
Engineering notation 8.1424209 × 10^6

Prime Factorization of 81424209

Prime Factorization 3 × 23 × 23 × 51307

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 3540183
Product of the distinct prime numbers

The prime factorization of 81424209 is 3 × 23 × 23 × 51307. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 36, 78, 655, 954, 1756, 2313, 39374, 93136, 218322, 257179, 9075562, 1063747, 83045312, 65538118, 115402642, 356470083, 3802672989, 2391591901

Basic calculations (n = 81424209)

Multiplication

n×y
n×2 162848418
n×3 244272627
n×4 325696836
n×5 407121045

Division

n÷y
n÷2 40712104.5
n÷3 27141403
n÷3 20356052.25
n÷5 16284841.8

Exponentiation

ny
n2 6629901811275681
n3 5.3983451073079E+23
n4 4.3955598027157E+31
n5 3.5790498004832E+39

Nth Root

y√n
2√n 9023.5363910166
3√n 433.42888379469
4√n 94.992296482486
5√n 38.207683683143

Divisors of 81424209

1, 3, 23, 69, 529, 1587, 51307, 153921, 1180061, 3540183, 27141403, 81424209

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 -81424208
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 81424209 can be divided by 12 positive divisors. The sum of these divisors (counting 81424209) is 1, the average is 0.083333333333333.

Base conversion 81424209

Base System Value
2 Binary 100110110100110111101010001
3 Ternary 12200012210000110
4 Quaternary 10312212331101
5 Quinary 131321033314
6 Senary 12025111533
8 Octal 466467521
10 Decimal 81424209
12 Duodecimal 233285a9
16 Hexadecimal 4da6f51
20 Vigesimal 158i0a9
36 Base36 1ch7bl

Cryptographic Hash Functions

md5 16c443e41cfb87e48e3aa13ce0951245
sha1 82805868f85db4bc09f15ac9a5042767e7074523
sha256 fd2901f2dfc3e7df4eda4ee692faed647d93814d43d8bd4b00535dd63fd44551
sha512 256d386e15582ac6cf56b71925756a75a9cefe7212792887a6b472f87417959186cdd4f96da857f87e0e205767ace0b5fdeb0c97708563ae493ffd17b75f1072
ripemd-160 82f90b21b21268956eab7c97afd70fb25e260e4f

81424209 as geometric shapes

Circle

Radius = n
Diameter 162848418
Circumference 511603393.63752
Area 2.0828450824325E+16

Sphere

Radius = n
Volume 2.2612535107548E+24
Surface area 8.3313803297301E+16
Circumference 511603393.63752

Square

Length = n
Perimeter 325696836
Area 6629901811275681
Diagonal 115151220.6733

Cube

Length = n
Surface area 39779410867654086
Volume 5.3983451073079E+23
Space diagonal 141030866.95411

Equilateral Triangle

Length = n
Perimeter 244272627
Area 2.8708316965806E+15
Altitude 70515433.477054

Triangular Pyramid

Length = n
Surface area 2.8708316965806E+15
Volume 6.3620107209377E+22
Height 38383740.224434