81123079 (number)

81123079 is an odd 8-digits composite number following 81123078 and preceding 81123080. In scientific notation, it is written as 8.1123079 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 81101880 positive integers (up to 81123079) that are relatively prime to 81123079.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1123079 × 10^7
Engineering notation 8.1123079 × 10^6

Prime Factorization of 81123079

Prime Factorization 5011 × 16189

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81123079
Product of the distinct prime numbers

The prime factorization of 81123079 is 5011 × 16189. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 7, 65, 839, 562, 271, 785, 58933, 44112, 681132, 640084, 2671828, 799902, 65220803, 18734250, 229304778, 622803698, 5382294378, 2005768871

Basic calculations (n = 81123079)

Multiplication

n×y
n×2 162246158
n×3 243369237
n×4 324492316
n×5 405615395

Division

n÷y
n÷2 40561539.5
n÷3 27041026.333333
n÷3 20280769.75
n÷5 16224615.8

Exponentiation

ny
n2 6580953946440241
n3 5.3386724689243E+23
n4 4.3308954845167E+31
n5 3.5133557653119E+39

Nth Root

y√n
2√n 9006.8351267246
3√n 432.89390911928
4√n 94.90434724882
5√n 38.179381196657

Divisors of 81123079

1, 5011, 16189, 81123079

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81123078
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81123079 can be divided by 4 positive divisors. The sum of these divisors (counting 81123079) is 1, the average is 0.25.

Base conversion 81123079

Base System Value
2 Binary 100110101011101011100000111
3 Ternary 12122122110221111
4 Quaternary 10311131130013
5 Quinary 131231414304
6 Senary 12014425451
8 Octal 465353407
10 Decimal 81123079
12 Duodecimal 23202287
16 Hexadecimal 4d5d707
20 Vigesimal 15707dj
36 Base36 1caqyv

Cryptographic Hash Functions

md5 7409a24bbf11741317968d8e888f81d4
sha1 adf986a35ff665783c493fac41f86ad2c6aa6b7b
sha256 4fae4983f9952744bc7a9fe4253df4b036093ba8943e26eb952f1229d60a0b8c
sha512 7d1dde0c5f787761559c9031cd8586cca617e12cd1c4d18a7d925e2a72c27135dba63cd358b01c02fcf416d79d3e4f2b5b29f38f5bc0adfd884415f947c0352b
ripemd-160 07c8f758d04d69902c2abef54a4dc073107363f9

81123079 as geometric shapes

Circle

Radius = n
Diameter 162246158
Circumference 509711338.04597
Area 2.0674676571749E+16

Sphere

Radius = n
Volume 2.2362578944393E+24
Surface area 8.2698706286998E+16
Circumference 509711338.04597

Square

Length = n
Perimeter 324492316
Area 6580953946440241
Diagonal 114725358.54326

Cube

Length = n
Surface area 39485723678641446
Volume 5.3386724689243E+23
Space diagonal 140509294.49442

Equilateral Triangle

Length = n
Perimeter 243369237
Area 2.8496366493764E+15
Altitude 70254647.247212

Triangular Pyramid

Length = n
Surface area 2.8496366493764E+15
Volume 6.2916858421839E+22
Height 38241786.181088