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

81489118 (number)

81489118 is an even 8-digits composite number following 81489117 and preceding 81489119. In scientific notation, it is written as 8.1489118 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 40324416 positive integers (up to 81489118) that are relatively prime to 81489118.

Interesting facts

81489118 has 8 divisors, whose sum is 123494112
The reverse of 81489118 is 81198418
Previous prime number is 97

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	8.1489118 × 10^7
Engineering notation	8.1489118 × 10^6

Prime Factorization of 81489118

Prime Factorization 2 × 97 × 420047

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489118	Product of the distinct prime numbers

The prime factorization of 81489118 is 2 × 97 × 420047. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 80, 56, 697, 338, 1873, 3959, 94245, 90342, 985212, 276412, 7986071, 6755227, 81763074, 55925153, 604253259, 931426195, 4326246871, 520240579

Basic calculations (n = 81489118)

Multiplication

n×y

n×2	162978236
n×3	244467354
n×4	325956472
n×5	407445590

Division

n÷y

n÷2	40744559
n÷3	27163039.333333
n÷3	20372279.5
n÷5	16297823.6

Exponentiation

n^y

n²	6640476352417924
n³	5.4112656105839E+23
n⁴	4.4095926187022E+31
n⁵	3.5933381323735E+39

Nth Root

^y√n

²√n	9027.1323242766
³√n	433.54402548435
⁴√n	95.011222096533
⁵√n	38.213773351432

Divisors of 81489118

1, 2, 97, 194, 420047, 840094, 40744559, 81489118

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	-81489117	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 81489118 can be divided by 8 positive divisors. The sum of these divisors (counting 81489118) is 1, the average is 0.125.

Base conversion 81489118

Base	System	Value
2	Binary	100110110110110110011011110
3	Ternary	12200100002001111
4	Quaternary	10312312303132
5	Quinary	131330122433
6	Senary	12030332234
8	Octal	466666336
10	Decimal	81489118
12	Duodecimal	2335a07a
16	Hexadecimal	4db6cde
20	Vigesimal	15962fi
36	Base36	1cilem

Cryptographic Hash Functions

md5	0636f64a62c38c168f4ba55e35a3d03a
sha1	281cfc9a155d2cde68f5e8d1c3ad36a36b029a16
sha256	34050fc38cbae56153b542ba1ec3630f10d1a682eb409c4e73dc7be4584c875e
sha512	50a827ccf8d371e92a49919cec65bf7a43f5c5ea91d4fec2794567521bfd4bc98385b475824ff6407ca3e19d1cb28a9bb86ec1e583a079eb53d6620872fdc9a5
ripemd-160	2b3fc30d9c04fa163854d73593552e9d10bb810a

81489118 as geometric shapes

Circle

Radius = n

Diameter	162978236
Circumference	512011228.91262
Area	2.0861671725093E+16

Sphere

Radius = n

Volume	2.2666656385111E+24
Surface area	8.3446686900372E+16
Circumference	512011228.91262

Square

Length = n

Perimeter	325956472
Area	6640476352417924
Diagonal	115243015.86142

Cube

Length = n

Surface area	39842858114507544
Volume	5.4112656105839E+23
Space diagonal	141143292.63998

Equilateral Triangle

Length = n

Perimeter	244467354
Area	2.8754106072119E+15
Altitude	70571646.319988

Triangular Pyramid

Length = n

Surface area	2.8754106072119E+15
Volume	6.3772376800758E+22
Height	38414338.620474