81909984, eighty-one million nine hundred nine thousand nine hundred eighty-four: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

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

Interesting facts

81909984 has 48 divisors, whose sum is 231556752
The reverse of 81909984 is 48990918
Previous prime number is 13

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 48
Digital Root 3

Name

Name	eighty-one million nine hundred nine thousand nine hundred eighty-four

Notation

Scientific notation	8.1909984 × 10^7
Engineering notation	8.1909984 × 10^6

Prime Factorization of 81909984

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 13 × 65633

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	8	Total number of prime factors
rad	Radical	5119374	Product of the distinct prime numbers

The prime factorization of 81909984 is 2 × 2 × 2 × 2 × 2 × 3 × 13 × 65633. Since it has a total of 8 prime factors.

Most popular turbo-numbers

9, 8, 39, 87, 997, 477, 1155, 1609, 25103, 59575, 313275, 169425, 9453897, 948520, 30410669, 3364332, 950715659, 356516327, 6844563984, 6934074212

Basic calculations (n = 81909984)

Multiplication

n×y

n×2	163819968
n×3	245729952
n×4	327639936
n×5	409549920

Division

n÷y

n÷2	40954992
n÷3	27303328
n÷3	20477496
n÷5	16381996.8

Exponentiation

n^y

n²	6709245478880256
n³	5.4955418982715E+23
n⁴	4.5013974895875E+31
n⁵	3.6870939634975E+39

Nth Root

^y√n

²√n	9050.4134712178
³√n	434.28911766888
⁴√n	95.133661083855
⁵√n	38.253164513561

Divisors of 81909984

1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 65633, 131266, 196899, 262532, 393798, 525064, 787596, 853229, 1050128, 1575192, 1706458, 2100256, 2559687, 3150384, 3412916, 5119374, 6300768, 6825832, 10238748, 13651664, 20477496, 27303328, 40954992, 81909984

48 divisors

τ	Total Divisors	48	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81909983	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.020833333333333	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	48	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81909984 can be divided by 48 positive divisors. The sum of these divisors (counting 81909984) is 1, the average is 0.020833333333333.

Base conversion 81909984

Base	System	Value
2	Binary	100111000011101100011100000
3	Ternary	12201010110101010
4	Quaternary	10320131203200
5	Quinary	131432104414
6	Senary	12043340520
8	Octal	470354340
10	Decimal	81909984
12	Duodecimal	23521740
16	Hexadecimal	4e1d8e0
20	Vigesimal	15biej4
36	Base36	1crm5c

Cryptographic Hash Functions

md5	b1d296049ffcac718af4ef88bba74937
sha1	7ab0090a78b24c5422d166148be35281ed0c900e
sha256	254dee04f436d7beafd55eeabbf6521726c75e9b11523b0addae1ed957bc0a20
sha512	de901c536149d5a4c41414b748faa87efbfdef878431044d0d82aebff4da2e4b0d69374c69533eaf7c47375301f52d8b4e2d7762024053858f415154cab26df7
ripemd-160	ccdc4a7886a82261e9944d1cb65dc5a51827ccdb

81909984 as geometric shapes

Circle

Radius = n

Diameter	163819968
Circumference	514655607.98011
Area	2.1077716307581E+16

Sphere

Radius = n

Volume	2.3019672073473E+24
Surface area	8.4310865230323E+16
Circumference	514655607.98011

Square

Length = n

Perimeter	327639936
Area	6709245478880256
Diagonal	115838210.26656

Cube

Length = n

Surface area	40255472873281536
Volume	5.4955418982715E+23
Space diagonal	141872253.93515

Equilateral Triangle

Length = n

Perimeter	245729952
Area	2.9051885124681E+15
Altitude	70936126.967577

Triangular Pyramid

Length = n

Surface area	2.9051885124681E+15
Volume	6.4765582376043E+22
Height	38612736.755521