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

81489455 (number)

81489455 is an odd 8-digits composite number following 81489454 and preceding 81489456. In scientific notation, it is written as 8.1489455 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 65191560 positive integers (up to 81489455) that are relatively prime to 81489455.

Interesting facts

81489455 has 4 divisors, whose sum is 97787352
The reverse of 81489455 is 55498418
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	eighty-one million four hundred eighty-nine thousand four hundred fifty-five

Notation

Scientific notation	8.1489455 × 10^7
Engineering notation	8.1489455 × 10^6

Prime Factorization of 81489455

Prime Factorization 5 × 16297891

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81489455	Product of the distinct prime numbers

The prime factorization of 81489455 is 5 × 16297891. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 12, 80, 617, 701, 1995, 1146, 31897, 62741, 219815, 145962, 5664886, 4572728, 65709760, 96115784, 240152042, 869426998, 2775345875, 3576808175

Basic calculations (n = 81489455)

Multiplication

n×y

n×2	162978910
n×3	244468365
n×4	325957820
n×5	407447275

Division

n÷y

n÷2	40744727.5
n÷3	27163151.666667
n÷3	20372363.75
n÷5	16297891

Exponentiation

n^y

n²	6640531276197025
n³	5.4113327460775E+23
n⁴	4.4096655630151E+31
n⁵	3.5934124346237E+39

Nth Root

^y√n

²√n	9027.1509902073
³√n	433.54462312707
⁴√n	95.011320326618
⁵√n	38.213804958156

Divisors of 81489455

1, 5, 16297891, 81489455

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	-81489454	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 81489455 can be divided by 4 positive divisors. The sum of these divisors (counting 81489455) is 1, the average is 0.25.

Base conversion 81489455

Base	System	Value
2	Binary	100110110110110111000101111
3	Ternary	12200100002111222
4	Quaternary	10312312320233
5	Quinary	131330130310
6	Senary	12030333555
8	Octal	466667057
10	Decimal	81489455
12	Duodecimal	2335a2bb
16	Hexadecimal	4db6e2f
20	Vigesimal	15963cf
36	Base36	1cilnz

Cryptographic Hash Functions

md5	d92616f44b44c95f8b44ae1247a4e584
sha1	2136a5a1782ca8fa9feb6762e1a2c78f1c1f1559
sha256	9c14ae3df279c0772d75c5c4a05e804b1728f01f6442165322b76af34cb92985
sha512	af9f4357961fe2ee729c38649a3044005b4189c7901963160f347d6ffabbe76d107afc0781201536733411cb54d8f51867d8b1bdcd7939842928ebe73ecc6629
ripemd-160	fc5a3202387db1347afcee1b4d403f876d9cb3ce

81489455 as geometric shapes

Circle

Radius = n

Diameter	162978910
Circumference	512013346.34607
Area	2.0861844273234E+16

Sphere

Radius = n

Volume	2.2666937601609E+24
Surface area	8.3447377092935E+16
Circumference	512013346.34607

Square

Length = n

Perimeter	325957820
Area	6640531276197025
Diagonal	115243492.45139

Cube

Length = n

Surface area	39843187657182150
Volume	5.4113327460775E+23
Space diagonal	141143876.3411

Equilateral Triangle

Length = n

Perimeter	244468365
Area	2.8754343899059E+15
Altitude	70571938.170549

Triangular Pyramid

Length = n

Surface area	2.8754343899059E+15
Volume	6.3773168000137E+22
Height	38414497.483797