81330402 (number)

81330402 is an even 8-digits composite number following 81330401 and preceding 81330403. In scientific notation, it is written as 8.1330402 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 27110132 positive integers (up to 81330402) that are relatively prime to 81330402.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty thousand four hundred two

Notation

Scientific notation 8.1330402 × 10^7
Engineering notation 8.1330402 × 10^6

Prime Factorization of 81330402

Prime Factorization 2 × 3 × 13555067

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81330402
Product of the distinct prime numbers

The prime factorization of 81330402 is 2 × 3 × 13555067. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81330402)

Multiplication

n×y
n×2 162660804
n×3 243991206
n×4 325321608
n×5 406652010

Division

n÷y
n÷2 40665201
n÷3 27110134
n÷3 20332600.5
n÷5 16266080.4

Exponentiation

ny
n2 6614634289481604
n3 5.3797086584652E+23
n4 4.3753386783586E+31
n5 3.5584805359705E+39

Nth Root

y√n
2√n 9018.336986385
3√n 433.26237194365
4√n 94.964925032272
5√n 38.198875980724

Divisors of 81330402

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81330401
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81330402 can be divided by 8 positive divisors. The sum of these divisors (counting 81330402) is 1, the average is 0.125.

Base conversion 81330402

Base System Value
2 Binary 100110110010000000011100010
3 Ternary 12200001000100010
4 Quaternary 10312100003202
5 Quinary 131310033102
6 Senary 12023105350
8 Octal 466200342
10 Decimal 81330402
12 Duodecimal 232a2256
16 Hexadecimal 4d900e2
20 Vigesimal 1586602
36 Base36 1cf6xu

Cryptographic Hash Functions

md5 0dda4aec32dd2eb336265a2596022848
sha1 18e8f3ebf80902b3761257973502f3e6e0e613f3
sha256 21b33e791fd83f8a9ee1af849169733d8d9ebf8f1479f54286548e34f10e3fd5
sha512 f4357e13b8e3da7ef9a499cb6ac67aa3dc3595fe72278bf04410d17acad5438d2b1090baadbfbb7a18571865b641a6dceb9868c9775a920458b77140fe9bf6d5
ripemd-160 030ace7f6b214a10d5dc806565764761060e83f6

81330402 as geometric shapes

Circle

Radius = n
Diameter 162660804
Circumference 511013986.87341
Area 2.0780486490019E+16

Sphere

Radius = n
Volume 2.2534470933184E+24
Surface area 8.3121945960074E+16
Circumference 511013986.87341

Square

Length = n
Perimeter 325321608
Area 6614634289481604
Diagonal 115018557.54166

Cube

Length = n
Surface area 39687805736889624
Volume 5.3797086584652E+23
Space diagonal 140868388.464

Equilateral Triangle

Length = n
Perimeter 243991206
Area 2.8642206657173E+15
Altitude 70434194.232001

Triangular Pyramid

Length = n
Surface area 2.8642206657173E+15
Volume 6.3400474553479E+22
Height 38339519.180552