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

81330989 (number)

81330989 is an odd 8-digits prime number following 81330988 and preceding 81330990. In scientific notation, it is written as 8.1330989 × 10^7. The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors. There are 81330988 positive integers (up to 81330989) that are relatively prime to 81330989.

Interesting facts

81330989 has 2 divisors, whose sum is 81330990
The reverse of 81330989 is 98903318
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

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

Notation

Scientific notation	8.1330989 × 10^7
Engineering notation	8.1330989 × 10^6

Prime Factorization of 81330989

Prime Factorization 81330989

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81330989	Product of the distinct prime numbers

The prime factorization of 81330989 is 81330989. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 4, 65, 42, 923, 703, 8974, 8220, 15434, 80148, 946049, 360104, 3524155, 4303724, 54612014, 83575594, 496441772, 396568319, 2485133411, 4533154102

Basic calculations (n = 81330989)

Multiplication

n×y

n×2	162661978
n×3	243992967
n×4	325323956
n×5	406654945

Division

n÷y

n÷2	40665494.5
n÷3	27110329.666667
n÷3	20332747.25
n÷5	16266197.8

Exponentiation

n^y

n²	6614729771718121
n³	5.3798251430158E+23
n⁴	4.3754649952854E+31
n⁵	3.5586089540144E+39

Nth Root

^y√n

²√n	9018.3695311292
³√n	433.26341429434
⁴√n	94.965096383509
⁵√n	38.198931120438

Divisors of 81330989

1, 81330989

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81330990	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40665495	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9018.3695865716	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999754091	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81330989 can be divided by 2 positive divisors. The sum of these divisors (counting 81330989) is 81330990, the average is 40665495.

Base conversion 81330989

Base	System	Value
2	Binary	100110110010000001100101101
3	Ternary	12200001001010212
4	Quaternary	10312100030231
5	Quinary	131310042424
6	Senary	12023112205
8	Octal	466201455
10	Decimal	81330989
12	Duodecimal	232a2665
16	Hexadecimal	4d9032d
20	Vigesimal	1586799
36	Base36	1cf7e5

Cryptographic Hash Functions

md5	e01636c94e26bd6ccb67c65554ca783f
sha1	5891db3224a6f48bb51a4df115b23c450c50395e
sha256	b8d3c8cda64a9c611ad54bd4bfbc0246baa5706d6a4d24bdbf1a16f2abd0c234
sha512	596a3ed962b78b3bbe0188ac83c3621798cffa7009dc1e03fcac6bfa3881048281fe53c932f53bd53b7c32b153f112837b65dfd2af37c86dfcc0b747103a5915
ripemd-160	397b50c26be96f4eed288e6a41f67af230b8f834

81330989 as geometric shapes

Circle

Radius = n

Diameter	162661978
Circumference	511017675.10318
Area	2.0780786456311E+16

Sphere

Radius = n

Volume	2.2534958862528E+24
Surface area	8.3123145825245E+16
Circumference	511017675.10318

Square

Length = n

Perimeter	325323956
Area	6614729771718121
Diagonal	115019387.68502

Cube

Length = n

Surface area	39688378630308726
Volume	5.3798251430158E+23
Space diagonal	140869405.17783

Equilateral Triangle

Length = n

Perimeter	243992967
Area	2.8642620107386E+15
Altitude	70434702.588913

Triangular Pyramid

Length = n

Surface area	2.8642620107386E+15
Volume	6.3401847337073E+22
Height	38339795.895006