Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81528081 (number)

81528081 is an odd 8-digits composite number following 81528080 and preceding 81528082. In scientific notation, it is written as 8.1528081 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 54328560 positive integers (up to 81528081) that are relatively prime to 81528081.

Interesting facts

81528081 has 8 divisors, whose sum is 108751104
The reverse of 81528081 is 18082518
Previous prime number is 3167

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million five hundred twenty-eight thousand eighty-one

Notation

Scientific notation	8.1528081 × 10^7
Engineering notation	8.1528081 × 10^6

Prime Factorization of 81528081

Prime Factorization 3 × 3167 × 8581

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81528081	Product of the distinct prime numbers

The prime factorization of 81528081 is 3 × 3167 × 8581. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 6, 7, 44, 144, 660, 9199, 8932, 79132, 23766, 945476, 109965, 6544674, 8808107, 6350389, 33429853, 686982539, 986527037, 6183079749, 1982430926

Basic calculations (n = 81528081)

Multiplication

n×y

n×2	163056162
n×3	244584243
n×4	326112324
n×5	407640405

Division

n÷y

n÷2	40764040.5
n÷3	27176027
n÷3	20382020.25
n÷5	16305616.2

Exponentiation

n^y

n²	6646827991542561
n³	5.4190313088755E+23
n⁴	4.4180322349154E+31
n⁵	3.6019368990879E+39

Nth Root

^y√n

²√n	9029.2901714365
³√n	433.61311235441
⁴√n	95.022577166884
⁵√n	38.217426940047

Divisors of 81528081

1, 3, 3167, 8581, 9501, 25743, 27176027, 81528081

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	-81528080	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 81528081 can be divided by 8 positive divisors. The sum of these divisors (counting 81528081) is 1, the average is 0.125.

Base conversion 81528081

Base	System	Value
2	Binary	100110111000000010100010001
3	Ternary	12200102001111120
4	Quaternary	10313000110101
5	Quinary	131332344311
6	Senary	12031232453
8	Octal	467002421
10	Decimal	81528081
12	Duodecimal	23378729
16	Hexadecimal	4dc0511
20	Vigesimal	159b041
36	Base36	1cjfgx

Cryptographic Hash Functions

md5	cd69ca094e3ceff1146eed3ff321715e
sha1	46d3a1ed842d92fbfc9c929b8b9088c19e0a3e58
sha256	376d701613114bb3fb044acf1cc4e93ee75e4cc67093153ee18527194ce741a7
sha512	da6b81f8e0506c7545d36d062e1e0f792424d0097dfd35cb3b1b166a0e84188b92f007e183cd0d6bb8d6741762f2621ab284687234dacaf176ec93bc2e1c000c
ripemd-160	c0be7e384e6cfb0124fca40dd304ff8e237fd498

81528081 as geometric shapes

Circle

Radius = n

Diameter	163056162
Circumference	512256040.66175
Area	2.0881625987905E+16

Sphere

Radius = n

Volume	2.2699185266048E+24
Surface area	8.352650395162E+16
Circumference	512256040.66175

Square

Length = n

Perimeter	326112324
Area	6646827991542561
Diagonal	115298117.86445

Cube

Length = n

Surface area	39880967949255366
Volume	5.4190313088755E+23
Space diagonal	141210778.53559

Equilateral Triangle

Length = n

Perimeter	244584243
Area	2.8781609476307E+15
Altitude	70605389.267795

Triangular Pyramid

Length = n

Surface area	2.8781609476307E+15
Volume	6.3863896432801E+22
Height	38432705.954817