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

81509970 (number)

81509970 is an even 8-digits composite number following 81509969 and preceding 81509971. In scientific notation, it is written as 8.1509970 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 21735984 positive integers (up to 81509970) that are relatively prime to 81509970.

Interesting facts

81509970 has 8 divisors, whose sum is 130416000
The reverse of 81509970 is 07990518
Previous prime number is 15

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	eighty-one million five hundred nine thousand nine hundred seventy

Notation

Scientific notation	8.1509970 × 10^7
Engineering notation	8.1509970 × 10^6

Prime Factorization of 81509970

Prime Factorization 2 × 15 × 2716999

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81509970	Product of the distinct prime numbers

The prime factorization of 81509970 is 2 × 15 × 2716999. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 9, 82, 4, 674, 12, 6375, 7096, 8677, 35754, 452715, 421945, 8995480, 6579698, 97443369, 33628825, 572487169, 301167095, 4888854013, 5197345375

Basic calculations (n = 81509970)

Multiplication

n×y

n×2	163019940
n×3	244529910
n×4	326039880
n×5	407549850

Division

n÷y

n÷2	40754985
n÷3	27169990
n÷3	20377492.5
n÷5	16301994

Exponentiation

n^y

n²	6643875209400900
n³	5.4154206900201E+23
n⁴	4.4141077798092E+31
n⁵	3.5979379270901E+39

Nth Root

^y√n

²√n	9028.2872129768
³√n	433.58100174677
⁴√n	95.017299545803
⁵√n	38.215728832297

Divisors of 81509970

1, 2, 15, 30, 2716999, 5433998, 40754985, 81509970

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	-81509969	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 81509970 can be divided by 8 positive divisors. The sum of these divisors (counting 81509970) is 1, the average is 0.125.

Base conversion 81509970

Base	System	Value
2	Binary	100110110111011111001010010
3	Ternary	12200101010122210
4	Quaternary	10312323321102
5	Quinary	131331304340
6	Senary	12031012550
8	Octal	466737122
10	Decimal	81509970
12	Duodecimal	2336a156
16	Hexadecimal	4dbbe52
20	Vigesimal	1598eia
36	Base36	1cj1hu

Cryptographic Hash Functions

md5	f0c24f0f04f5f712baa13fc84760d833
sha1	47e0462619cefbdfb0db6c27922c2c5126bcbe92
sha256	5e9956840b74bade5ca24f00f3d483963db4555963bac4a5c2b195d713dfb65b
sha512	3cfc7afcc951c0e25975f2f9b3cbda7d81beee99f9870417f855e70332661082591adacc50a8650408cbb24c901fe8fe3be21ccabeed71575cc60595ecd50e0d
ripemd-160	2819b814fcb12bcb5a9a148d342a6757e4ea645d

81509970 as geometric shapes

Circle

Radius = n

Diameter	163019940
Circumference	512142245.89265
Area	2.0872349549221E+16

Sphere

Radius = n

Volume	2.2684061141154E+24
Surface area	8.3489398196885E+16
Circumference	512142245.89265

Square

Length = n

Perimeter	326039880
Area	6643875209400900
Diagonal	115272505.04262

Cube

Length = n

Surface area	39863251256405400
Volume	5.4154206900201E+23
Space diagonal	141179409.36341

Equilateral Triangle

Length = n

Perimeter	244529910
Area	2.8768823554574E+15
Altitude	70589704.681707

Triangular Pyramid

Length = n

Surface area	2.8768823554574E+15
Volume	6.3821344881519E+22
Height	38424168.347541