81330461 (number)

81330461 is an odd 8-digits composite number following 81330460 and preceding 81330462. In scientific notation, it is written as 8.1330461 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 75613824 positive integers (up to 81330461) that are relatively prime to 81330461.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1330461 × 10^7
Engineering notation 8.1330461 × 10^6

Prime Factorization of 81330461

Prime Factorization 137 × 23 × 53 × 487

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81330461
Product of the distinct prime numbers

The prime factorization of 81330461 is 137 × 23 × 53 × 487. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 75, 63, 309, 976, 1034, 4305, 16125, 83934, 321271, 252702, 3068709, 8603678, 46564246, 79031041, 13286207, 916836648, 5138866726, 7081157472

Basic calculations (n = 81330461)

Multiplication

n×y
n×2 162660922
n×3 243991383
n×4 325321844
n×5 406652305

Division

n÷y
n÷2 40665230.5
n÷3 27110153.666667
n÷3 20332615.25
n÷5 16266092.2

Exponentiation

ny
n2 6614643886472521
n3 5.3797203663764E+23
n4 4.3753513744848E+31
n5 3.5584934432383E+39

Nth Root

y√n
2√n 9018.3402574975
3√n 433.26247671166
4√n 94.964942255011
5√n 38.198881522891

Divisors of 81330461

1, 23, 53, 137, 487, 1219, 3151, 7261, 11201, 25811, 66719, 167003, 593653, 1534537, 3536107, 81330461

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 -81330460
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 81330461 can be divided by 16 positive divisors. The sum of these divisors (counting 81330461) is 1, the average is 0.0625.

Base conversion 81330461

Base System Value
2 Binary 100110110010000000100011101
3 Ternary 12200001000102022
4 Quaternary 10312100010131
5 Quinary 131310033321
6 Senary 12023105525
8 Octal 466200435
10 Decimal 81330461
12 Duodecimal 232a22a5
16 Hexadecimal 4d9011d
20 Vigesimal 1586631
36 Base36 1cf6zh

Cryptographic Hash Functions

md5 59d90e16fea0d5d5e63207c1349fc6b8
sha1 110a08ee5107b68c65396d67a7879fbd232c981a
sha256 e15be0615ace58cbfc280d84aab35331770cf7e946906cacd6810661f27ec5e8
sha512 7663c70d6fc2c1c45d86237e197c9496fedd275185cc574713f2f724f70d8e5a07e44222a98ad580457bba8f3edd7f5fc7e8cb8c0c0eaf8f4c290e436bbb0ca4
ripemd-160 bd78127444b54f4184008c85664b3ff1fc77a7bf

81330461 as geometric shapes

Circle

Radius = n
Diameter 162660922
Circumference 511014357.58134
Area 2.0780516639855E+16

Sphere

Radius = n
Volume 2.2534519975167E+24
Surface area 8.3122066559419E+16
Circumference 511014357.58134

Square

Length = n
Perimeter 325321844
Area 6614643886472521
Diagonal 115018640.98026

Cube

Length = n
Surface area 39687863318835126
Volume 5.3797203663764E+23
Space diagonal 140868490.655

Equilateral Triangle

Length = n
Perimeter 243991383
Area 2.8642248213363E+15
Altitude 70434245.3275

Triangular Pyramid

Length = n
Surface area 2.8642248213363E+15
Volume 6.3400612532536E+22
Height 38339546.993419