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

81720171 (number)

81720171 is an odd 8-digits composite number following 81720170 and preceding 81720172. In scientific notation, it is written as 8.1720171 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 50283504 positive integers (up to 81720171) that are relatively prime to 81720171.

Interesting facts

81720171 has 16 divisors, whose sum is 117838336
The reverse of 81720171 is 17102718
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one million seven hundred twenty thousand one hundred seventy-one

Notation

Scientific notation	8.1720171 × 10^7
Engineering notation	8.1720171 × 10^6

Prime Factorization of 81720171

Prime Factorization 243 × 3 × 13 × 8623

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	81720171	Product of the distinct prime numbers

The prime factorization of 81720171 is 243 × 3 × 13 × 8623. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 2, 16, 24, 915, 744, 8414, 3589, 84095, 2875, 915693, 768678, 3156237, 927552, 27257060, 81831677, 202793482, 332025660, 8961046895, 5335358298

Basic calculations (n = 81720171)

Multiplication

n×y

n×2	163440342
n×3	245160513
n×4	326880684
n×5	408600855

Division

n÷y

n÷2	40860085.5
n÷3	27240057
n÷3	20430042.75
n÷5	16344034.2

Exponentiation

n^y

n²	6678186348269241
n³	5.4574253035043E+23
n⁴	4.459817290221E+31
n⁵	3.6445703158561E+39

Nth Root

^y√n

²√n	9039.9209620439
³√n	433.95339352422
⁴√n	95.078498947153
⁵√n	38.235418965685

Divisors of 81720171

1, 3, 13, 39, 243, 729, 3159, 8623, 9477, 25869, 112099, 336297, 2095389, 6286167, 27240057, 81720171

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	-81720170	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 81720171 can be divided by 16 positive divisors. The sum of these divisors (counting 81720171) is 1, the average is 0.0625.

Base conversion 81720171

Base	System	Value
2	Binary	100110111101111001101101011
3	Ternary	12200202211000000
4	Quaternary	10313233031223
5	Quinary	131410021141
6	Senary	12035314043
8	Octal	467571553
10	Decimal	81720171
12	Duodecimal	2344b923
16	Hexadecimal	4def36b
20	Vigesimal	15af08b
36	Base36	1cnjor

Cryptographic Hash Functions

md5	8ed8452c203a4389cbfe5dd4b2741744
sha1	059d261bf82617a89a33a269aa548e1183cf3dce
sha256	56c18f1ac522bc9198f8b5ec3853da824c051cd7cfcb7a7a7ce1fdf1147fcc3d
sha512	aed84d74b4aa21d072415862b6ea01b21ecfefd6bd48c16602db23e4a31ddd9e72787d6367aba8075b2bb627d94dc78c6c8433f2460bf00e13687518f7d37ebe
ripemd-160	b7103e9f83ea4294bed7e3b95489564dcfce8091

81720171 as geometric shapes

Circle

Radius = n

Diameter	163440342
Circumference	513462977.7274
Area	2.0980141171026E+16

Sphere

Radius = n

Volume	2.2860009654672E+24
Surface area	8.3920564684105E+16
Circumference	513462977.7274

Square

Length = n

Perimeter	326880684
Area	6678186348269241
Diagonal	115569774.14765

Cube

Length = n

Surface area	40069118089615446
Volume	5.4574253035043E+23
Space diagonal	141543488.17522

Equilateral Triangle

Length = n

Perimeter	245160513
Area	2.8917395144038E+15
Altitude	70771744.087608

Triangular Pyramid

Length = n

Surface area	2.8917395144038E+15
Volume	6.4316373998782E+22
Height	38523258.049216