81330381 (number)

81330381 is an odd 8-digits composite number following 81330380 and preceding 81330382. In scientific notation, it is written as 8.1330381 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 49291080 positive integers (up to 81330381) that are relatively prime to 81330381.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1330381 × 10^7
Engineering notation 8.1330381 × 10^6

Prime Factorization of 81330381

Prime Factorization 3 × 3 × 11 × 821519

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 27110127
Product of the distinct prime numbers

The prime factorization of 81330381 is 3 × 3 × 11 × 821519. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 8, 31, 99, 901, 633, 8758, 3255, 41491, 53677, 422877, 537739, 2099374, 278831, 74533166, 83648344, 757458910, 354678424, 2543296714, 133483613

Basic calculations (n = 81330381)

Multiplication

n×y
n×2 162660762
n×3 243991143
n×4 325321524
n×5 406651905

Division

n÷y
n÷2 40665190.5
n÷3 27110127
n÷3 20332595.25
n÷5 16266076.2

Exponentiation

ny
n2 6614630873605161
n3 5.3797044912467E+23
n4 4.3753341594051E+31
n5 3.5584759418673E+39

Nth Root

y√n
2√n 9018.3358220905
3√n 433.26233465333
4√n 94.964918902142
5√n 38.198874008088

Divisors of 81330381

1, 3, 9, 11, 33, 99, 821519, 2464557, 7393671, 9036709, 27110127, 81330381

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 -81330380
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 81330381 can be divided by 12 positive divisors. The sum of these divisors (counting 81330381) is 1, the average is 0.083333333333333.

Base conversion 81330381

Base System Value
2 Binary 100110110010000000011001101
3 Ternary 12200001000022100
4 Quaternary 10312100003031
5 Quinary 131310033011
6 Senary 12023105313
8 Octal 466200315
10 Decimal 81330381
12 Duodecimal 232a2239
16 Hexadecimal 4d900cd
20 Vigesimal 15865j1
36 Base36 1cf6x9

Cryptographic Hash Functions

md5 42f60efe9f6c992220fc563f1bc92b4c
sha1 e65215525935f40a989b4623c69d06bd218e65fe
sha256 bdf8a95090058d33f3bb5d2973e0e5cd89c07c0bf45fc7d69356ec8afaf8de0d
sha512 f6cc7d1ddc9e0f5088870e9e85a41117049c2662b75078c46a7e519c79ee7c7f79eba34ad2a6e735b76750c300aec90135f87e1dc50b456473fe8e2853aafaf7
ripemd-160 942dc0e84d20ba951e10235f15d300adb43d2cc4

81330381 as geometric shapes

Circle

Radius = n
Diameter 162660762
Circumference 511013854.92652
Area 2.0780475758726E+16

Sphere

Radius = n
Volume 2.253445347758E+24
Surface area 8.3121903034905E+16
Circumference 511013854.92652

Square

Length = n
Perimeter 325321524
Area 6614630873605161
Diagonal 115018527.84317

Cube

Length = n
Surface area 39687785241630966
Volume 5.3797044912467E+23
Space diagonal 140868352.09093

Equilateral Triangle

Length = n
Perimeter 243991143
Area 2.8642191865995E+15
Altitude 70434176.045467

Triangular Pyramid

Length = n
Surface area 2.8642191865995E+15
Volume 6.3400425442338E+22
Height 38339509.281057