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

81489689 (number)

81489689 is an odd 8-digits composite number following 81489688 and preceding 81489690. In scientific notation, it is written as 8.1489689 × 10^7. The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors. There are 77068800 positive integers (up to 81489689) that are relatively prime to 81489689.

Interesting facts

81489689 has 8 divisors, whose sum is 85925280
The reverse of 81489689 is 98698418
Previous prime number is 6691

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8

Name

Name	eighty-one million four hundred eighty-nine thousand six hundred eighty-nine

Notation

Scientific notation	8.1489689 × 10^7
Engineering notation	8.1489689 × 10^6

Prime Factorization of 81489689

Prime Factorization 19 × 6691 × 641

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489689	Product of the distinct prime numbers

The prime factorization of 81489689 is 19 × 6691 × 641. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 98, 14, 778, 705, 4539, 9054, 64671, 49549, 7066, 862544, 4438950, 7390577, 34817570, 44510882, 737783702, 777705736, 7193933349, 2721672312

Basic calculations (n = 81489689)

Multiplication

n×y

n×2	162979378
n×3	244469067
n×4	325958756
n×5	407448445

Division

n÷y

n÷2	40744844.5
n÷3	27163229.666667
n÷3	20372422.25
n÷5	16297937.8

Exponentiation

n^y

n²	6640569413316721
n³	5.4113793627409E+23
n⁴	4.4097162133078E+31
n⁵	3.5934640280071E+39

Nth Root

^y√n

²√n	9027.1639510978
³√n	433.54503810651
⁴√n	95.01138853368
⁵√n	38.213826904603

Divisors of 81489689

1, 19, 641, 6691, 12179, 127129, 4288931, 81489689

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	-81489688	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 81489689 can be divided by 8 positive divisors. The sum of these divisors (counting 81489689) is 1, the average is 0.125.

Base conversion 81489689

Base	System	Value
2	Binary	100110110110110111100011001
3	Ternary	12200100002211122
4	Quaternary	10312312330121
5	Quinary	131330132224
6	Senary	12030335025
8	Octal	466667431
10	Decimal	81489689
12	Duodecimal	2335a475
16	Hexadecimal	4db6f19
20	Vigesimal	1596449
36	Base36	1ciluh

Cryptographic Hash Functions

md5	83284b973c2c6aad543277884d937f8b
sha1	8555360758ee716acbe5dd2faebf0e4ef9e72794
sha256	760e0c933b65e4fd5cce72369a453f9ba10cf63e55c0e1ad1bf9a3f93c9a6e92
sha512	0bcd0bb627b0ed61ac798d0a7337e40cfb21d1f79505acbcbad473f4957f28ffbaee11dabd3e040f82f7b89d97f25b3d60d1cbe962af5c8279ab4e1507f86b30
ripemd-160	cedb1af7539ac25173d646be9c861ad950070d30

81489689 as geometric shapes

Circle

Radius = n

Diameter	162979378
Circumference	512014816.61143
Area	2.0861964084529E+16

Sphere

Radius = n

Volume	2.2667132869032E+24
Surface area	8.3447856338116E+16
Circumference	512014816.61143

Square

Length = n

Perimeter	325958756
Area	6640569413316721
Diagonal	115243823.37737

Cube

Length = n

Surface area	39843416479900326
Volume	5.4113793627409E+23
Space diagonal	141144281.64099

Equilateral Triangle

Length = n

Perimeter	244469067
Area	2.8754509037631E+15
Altitude	70572140.820493

Triangular Pyramid

Length = n

Surface area	2.8754509037631E+15
Volume	6.3773717382784E+22
Height	38414607.792455