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

81720147 (number)

81720147 is an odd 8-digits composite number following 81720146 and preceding 81720148. In scientific notation, it is written as 8.1720147 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 54480096 positive integers (up to 81720147) that are relatively prime to 81720147.

Interesting facts

81720147 has 4 divisors, whose sum is 108960200
The reverse of 81720147 is 74102718
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

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

Notation

Scientific notation	8.1720147 × 10^7
Engineering notation	8.1720147 × 10^6

Prime Factorization of 81720147

Prime Factorization 3 × 27240049

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81720147	Product of the distinct prime numbers

The prime factorization of 81720147 is 3 × 27240049. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 8, 90, 83, 304, 192, 7616, 1968, 69033, 79881, 58301, 233890, 1253794, 3728371, 53306346, 77730339, 792272206, 236355131, 3654392083, 125758900

Basic calculations (n = 81720147)

Multiplication

n×y

n×2	163440294
n×3	245160441
n×4	326880588
n×5	408600735

Division

n÷y

n÷2	40860073.5
n÷3	27240049
n÷3	20430036.75
n÷5	16344029.4

Exponentiation

n^y

n²	6678182425701609
n³	5.4574204952115E+23
n⁴	4.459812051095E+31
n⁵	3.6445649640785E+39

Nth Root

^y√n

²√n	9039.9196345985
³√n	433.95335104233
⁴√n	95.078491966367
⁵√n	38.23541671985

Divisors of 81720147

1, 3, 27240049, 81720147

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81720146	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81720147 can be divided by 4 positive divisors. The sum of these divisors (counting 81720147) is 1, the average is 0.25.

Base conversion 81720147

Base	System	Value
2	Binary	100110111101111001101010011
3	Ternary	12200202210222010
4	Quaternary	10313233031103
5	Quinary	131410021042
6	Senary	12035314003
8	Octal	467571523
10	Decimal	81720147
12	Duodecimal	2344b903
16	Hexadecimal	4def353
20	Vigesimal	15af077
36	Base36	1cnjo3

Cryptographic Hash Functions

md5	b6f6700d170059ccfe58eab60555a0b9
sha1	fc26f5de4ba549d38428eb7e421a2a52982fe435
sha256	656cc08730c078b7c442948b6bec4c92125b8284950dfb62861e51d559e3c21a
sha512	185df7ce86e8949db71343c72cc21c248436ae6821bd7c8967d63feb992ae1593d0e3e06b87ab6245fde2b438dc9bb56e0d8349847345f7f1ebf655bf2f41c11
ripemd-160	a248757b5bb6da525d41d632e70ddf10470e8a31

81720147 as geometric shapes

Circle

Radius = n

Diameter	163440294
Circumference	513462826.93096
Area	2.0980128847917E+16

Sphere

Radius = n

Volume	2.2859989513743E+24
Surface area	8.3920515391667E+16
Circumference	513462826.93096

Square

Length = n

Perimeter	326880588
Area	6678182425701609
Diagonal	115569740.20652

Cube

Length = n

Surface area	40069094554209654
Volume	5.4574204952115E+23
Space diagonal	141543446.606

Equilateral Triangle

Length = n

Perimeter	245160441
Area	2.8917378158822E+15
Altitude	70771723.302999

Triangular Pyramid

Length = n

Surface area	2.8917378158822E+15
Volume	6.4316317332509E+22
Height	38523246.735508