81331306 (number)

81331306 is an even 8-digits composite number following 81331305 and preceding 81331307. In scientific notation, it is written as 8.1331306 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 34770960 positive integers (up to 81331306) that are relatively prime to 81331306.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty-one thousand three hundred six

Notation

Scientific notation 8.1331306 × 10^7
Engineering notation 8.1331306 × 10^6

Prime Factorization of 81331306

Prime Factorization 2 × 7 × 421 × 13799

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81331306
Product of the distinct prime numbers

The prime factorization of 81331306 is 2 × 7 × 421 × 13799. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 87, 12, 689, 651, 8212, 1681, 93119, 10338, 873208, 606495, 5535835, 3405989, 6765433, 62294534, 268330677, 22139721, 4090295434, 7782971883

Basic calculations (n = 81331306)

Multiplication

n×y
n×2 162662612
n×3 243993918
n×4 325325224
n×5 406656530

Division

n÷y
n÷2 40665653
n÷3 27110435.333333
n÷3 20332826.5
n÷5 16266261.2

Exponentiation

ny
n2 6614781335665636
n3 5.3798880493411E+23
n4 4.375533211867E+31
n5 3.5586783056752E+39

Nth Root

y√n
2√n 9018.3871063511
3√n 433.26397719713
4√n 94.96518891863
5√n 38.19896089763

Divisors of 81331306

1, 2, 7, 14, 421, 842, 2947, 5894, 13799, 27598, 96593, 193186, 5809379, 11618758, 40665653, 81331306

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 -81331305
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 81331306 can be divided by 16 positive divisors. The sum of these divisors (counting 81331306) is 1, the average is 0.0625.

Base conversion 81331306

Base System Value
2 Binary 100110110010000010001101010
3 Ternary 12200001001120121
4 Quaternary 10312100101222
5 Quinary 131310100211
6 Senary 12023113454
8 Octal 466202152
10 Decimal 81331306
12 Duodecimal 232a288a
16 Hexadecimal 4d9046a
20 Vigesimal 1586856
36 Base36 1cf7my

Cryptographic Hash Functions

md5 102796cf6264a62efa5d3ff290350427
sha1 08a9a4eca1143c3c25d42d3c126331aefc6ece73
sha256 afbad60bf91dcf302eabde20eefdab64818bc023ff96389b2507a683049aba18
sha512 90dda39ee2609ef3ac76b6290a4a61bb0f5608c15fd2cccec8230f5ec0333611d3a0d2803992345ee05e5e7484530b163c6a38ff2f3935b1ecbfe75533fd7405
ripemd-160 ff194137da14c1d1b6ebe26894184becc6af5c67

81331306 as geometric shapes

Circle

Radius = n
Diameter 162662612
Circumference 511019666.87293
Area 2.078094844923E+16

Sphere

Radius = n
Volume 2.2535222363927E+24
Surface area 8.312379379692E+16
Circumference 511019666.87293

Square

Length = n
Perimeter 325325224
Area 6614781335665636
Diagonal 115019835.99072

Cube

Length = n
Surface area 39688688013993816
Volume 5.3798880493411E+23
Space diagonal 140869954.23793

Equilateral Triangle

Length = n
Perimeter 243993918
Area 2.8642843385828E+15
Altitude 70434977.118966

Triangular Pyramid

Length = n
Surface area 2.8642843385828E+15
Volume 6.3402588695226E+22
Height 38339945.330239