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

81301909 (number)

81301909 is an odd 8-digits composite number following 81301908 and preceding 81301910. In scientific notation, it is written as 8.1301909 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 75047904 positive integers (up to 81301909) that are relatively prime to 81301909.

Interesting facts

81301909 has 4 divisors, whose sum is 87555916
The reverse of 81301909 is 90910318
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	8.1301909 × 10^7
Engineering notation	8.1301909 × 10^6

Prime Factorization of 81301909

Prime Factorization 13 × 6253993

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81301909	Product of the distinct prime numbers

The prime factorization of 81301909 is 13 × 6253993. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 5, 21, 97, 249, 121, 7123, 4071, 40261, 75995, 181090, 820192, 9020475, 9926143, 82889064, 99209396, 494950250, 481580102, 958163786, 5932047747

Basic calculations (n = 81301909)

Multiplication

n×y

n×2	162603818
n×3	243905727
n×4	325207636
n×5	406509545

Division

n÷y

n÷2	40650954.5
n÷3	27100636.333333
n÷3	20325477.25
n÷5	16260381.8

Exponentiation

n^y

n²	6610000407044281
n³	5.3740565158348E+23
n⁴	4.3692105381126E+31
n⁵	3.5522515757147E+39

Nth Root

^y√n

²√n	9016.7571221587
³√n	433.21177017454
⁴√n	94.95660652192
⁵√n	38.196199114261

Divisors of 81301909

1, 13, 6253993, 81301909

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	-81301908	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 81301909 can be divided by 4 positive divisors. The sum of these divisors (counting 81301909) is 1, the average is 0.25.

Base conversion 81301909

Base	System	Value
2	Binary	100110110001001000110010101
3	Ternary	12122222120020211
4	Quaternary	10312021012111
5	Quinary	131303130114
6	Senary	12022325421
8	Octal	466110625
10	Decimal	81301909
12	Duodecimal	23289871
16	Hexadecimal	4d89195
20	Vigesimal	1582ef9
36	Base36	1cekyd

Cryptographic Hash Functions

md5	c9abae729692d344153110a2354fc02b
sha1	86d2effa4f626111475a4d5b322629a868948644
sha256	d907ce6b15192122ce6b2702b16cb69d01fae9b86cbfb7ed2d5f43f4194cea07
sha512	a7ce9f07a28452fa9a8ac68fe1bb3edec906500ee266cb56abe483658037965ae8bd127ce8e8344f2ba90ac63a508aff3c58f9d493904a91830952d3181134ab
ripemd-160	e1741a247cc8a4e73febebb72c0a66102f8ec1e7

81301909 as geometric shapes

Circle

Radius = n

Diameter	162603818
Circumference	510834960.07445
Area	2.0765928718996E+16

Sphere

Radius = n

Volume	2.2510795293497E+24
Surface area	8.3063714875983E+16
Circumference	510834960.07445

Square

Length = n

Perimeter	325207636
Area	6610000407044281
Diagonal	114978262.35462

Cube

Length = n

Surface area	39660002442265686
Volume	5.3740565158348E+23
Space diagonal	140819037.14034

Equilateral Triangle

Length = n

Perimeter	243905727
Area	2.8622141357629E+15
Altitude	70409518.570171

Triangular Pyramid

Length = n

Surface area	2.8622141357629E+15
Volume	6.3333863413775E+22
Height	38326087.451541