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

81168909 (number)

81168909 is an odd 8-digits composite number following 81168908 and preceding 81168910. In scientific notation, it is written as 8.1168909 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 51759840 positive integers (up to 81168909) that are relatively prime to 81168909.

Interesting facts

81168909 has 8 divisors, whose sum is 112930752
The reverse of 81168909 is 90986118
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	eighty-one million one hundred sixty-eight thousand nine hundred nine

Notation

Scientific notation	8.1168909 × 10^7
Engineering notation	8.1168909 × 10^6

Prime Factorization of 81168909

Prime Factorization 3 × 23 × 1176361

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81168909	Product of the distinct prime numbers

The prime factorization of 81168909 is 3 × 23 × 1176361. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 10, 56, 30, 809, 368, 9579, 5280, 13514, 46189, 78355, 590748, 5349613, 5642031, 67515225, 17444018, 694046838, 955427439, 3124517127, 7851278176

Basic calculations (n = 81168909)

Multiplication

n×y

n×2	162337818
n×3	243506727
n×4	324675636
n×5	405844545

Division

n÷y

n÷2	40584454.5
n÷3	27056303
n÷3	20292227.25
n÷5	16233781.8

Exponentiation

n^y

n²	6588391788250281
n³	5.3477257351683E+23
n⁴	4.3406906355484E+31
n⁵	3.5232912319398E+39

Nth Root

^y√n

²√n	9009.3789464091
³√n	432.97541405062
⁴√n	94.917748321424
⁵√n	38.183694064928

Divisors of 81168909

1, 3, 23, 69, 1176361, 3529083, 27056303, 81168909

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	-81168908	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 81168909 can be divided by 8 positive divisors. The sum of these divisors (counting 81168909) is 1, the average is 0.125.

Base conversion 81168909

Base	System	Value
2	Binary	100110101101000101000001101
3	Ternary	12122201210210220
4	Quaternary	10311220220031
5	Quinary	131234401114
6	Senary	12015421553
8	Octal	465505015
10	Decimal	81168909
12	Duodecimal	232248b9
16	Hexadecimal	4d68a0d
20	Vigesimal	1576259
36	Base36	1cbqbx

Cryptographic Hash Functions

md5	600fc2b01f422c42c21d25714f607366
sha1	b73e144e84fd16f086add460eb50de4a73e78f17
sha256	d7607a7533f80b1e64b37f13a914d71c846e31c311ac0bbea5170586e426d91a
sha512	55fee3272a04eb6e561206424e9747c8852b77381c9987074ae3522e87976e33597c2d4794d9263e841baa9c77598733237401565bd01c22f9d9f5c8a0257339
ripemd-160	d639cd92f52d866903ccc85ff47213fa2c34efc1

81168909 as geometric shapes

Circle

Radius = n

Diameter	162337818
Circumference	509999296.4286
Area	2.0698043240938E+16

Sphere

Radius = n

Volume	2.2400501177357E+24
Surface area	8.2792172963754E+16
Circumference	509999296.4286

Square

Length = n

Perimeter	324675636
Area	6588391788250281
Diagonal	114790171.95083

Cube

Length = n

Surface area	39530350729501686
Volume	5.3477257351683E+23
Space diagonal	140588674.38293

Equilateral Triangle

Length = n

Perimeter	243506727
Area	2.8528573293548E+15
Altitude	70294337.191467

Triangular Pyramid

Length = n

Surface area	2.8528573293548E+15
Volume	6.3023552187723E+22
Height	38263390.650276