81293380 (number)

81293380 is an even 8-digits composite number following 81293379 and preceding 81293381. In scientific notation, it is written as 8.1293380 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors. There are 26909568 positive integers (up to 81293380) that are relatively prime to 81293380.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-three thousand three hundred eighty

Notation

Scientific notation 8.1293380 × 10^7
Engineering notation 8.1293380 × 10^6

Prime Factorization of 81293380

Prime Factorization 2 × 2 × 7 × 145 × 20023

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40646690
Product of the distinct prime numbers

The prime factorization of 81293380 is 2 × 2 × 7 × 145 × 20023. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 8, 30, 33, 779, 606, 3264, 5407, 34911, 92492, 991732, 607964, 6230727, 6042269, 62843478, 55379215, 923598955, 881852814, 7251085436, 2949945340

Basic calculations (n = 81293380)

Multiplication

n×y
n×2 162586760
n×3 243880140
n×4 325173520
n×5 406466900

Division

n÷y
n÷2 40646690
n÷3 27097793.333333
n÷3 20323345
n÷5 16258676

Exponentiation

ny
n2 6608613631824400
n3 5.3723653924508E+23
n4 4.3673774134735E+31
n5 3.5503887167692E+39

Nth Root

y√n
2√n 9016.2841570128
3√n 433.19662090992
4√n 94.954116061458
5√n 38.195397683994

Divisors of 81293380

1, 2, 4, 7, 14, 28, 145, 290, 580, 1015, 2030, 4060, 20023, 40046, 80092, 140161, 280322, 560644, 2903335, 5806670, 11613340, 20323345, 40646690, 81293380

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81293379
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81293380 can be divided by 24 positive divisors. The sum of these divisors (counting 81293380) is 1, the average is 0.041666666666667.

Base conversion 81293380

Base System Value
2 Binary 100110110000111000001000100
3 Ternary 12122222010112221
4 Quaternary 10312013001010
5 Quinary 131302342010
6 Senary 12022222124
8 Octal 466070104
10 Decimal 81293380
12 Duodecimal 23284944
16 Hexadecimal 4d87044
20 Vigesimal 1581d90
36 Base36 1ceedg

Cryptographic Hash Functions

md5 7d160f65097d8317c6996bcbf2f3aea8
sha1 68e632aa536b79cd773c180c64f62aa5dea8a5ab
sha256 99cc5bd2998609bb0c98c499178e73cac0f91be22344800190c3a0009e85cebc
sha512 95c6991e3d6852bb930f57eb950532a9a470e8bdaf2fd7e69f58e195fed358504101e1d5f19adbf9af840f664fc1271e5673566016b20ab10ee1cc18b91a550f
ripemd-160 c53202c9a37882846fb76198f9cdb3dc83a8a34d

81293380 as geometric shapes

Circle

Radius = n
Diameter 162586760
Circumference 510781370.78697
Area 2.0761572036153E+16

Sphere

Radius = n
Volume 2.2503711532431E+24
Surface area 8.3046288144612E+16
Circumference 510781370.78697

Square

Length = n
Perimeter 325173520
Area 6608613631824400
Diagonal 114966200.52715

Cube

Length = n
Surface area 39651681790946400
Volume 5.3723653924508E+23
Space diagonal 140804264.479

Equilateral Triangle

Length = n
Perimeter 243880140
Area 2.861613644478E+15
Altitude 70402132.239502

Triangular Pyramid

Length = n
Surface area 2.861613644478E+15
Volume 6.3313933333565E+22
Height 38322066.842383