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

128561 (number)

128561 is an odd 6-digits composite number following 128560 and preceding 128562. In scientific notation, it is written as 1.28561 × 10^5. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 126324 positive integers (up to 128561) that are relatively prime to 128561.

Interesting facts

128561 has 4 divisors, whose sum is 130800
The reverse of 128561 is 165821
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 23
Digital Root 5

Name

Name	one hundred twenty-eight thousand five hundred sixty-one

Notation

Scientific notation	1.28561 × 10^5
Engineering notation	1.28561 × 10^3

Prime Factorization of 128561

Prime Factorization 59 × 2179

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	128561	Product of the distinct prime numbers

The prime factorization of 128561 is 59 × 2179. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 5, 4, 100, 396, 834, 879, 5911, 98170, 8622, 876021, 676529, 3739626, 7005176, 7780794, 38093655, 207555647, 567738987, 4532743304, 3470194794

Basic calculations (n = 128561)

Multiplication

n×y

n×2	257122
n×3	385683
n×4	514244
n×5	642805

Division

n÷y

n÷2	64280.5
n÷3	42853.666666667
n÷3	32140.25
n÷5	25712.2

Exponentiation

n^y

n²	16527930721
n³	2124847301422481
n⁴	2.7317249391818E+20
n⁵	3.5119328990615E+25

Nth Root

^y√n

²√n	358.55404055735
³√n	50.470361329378
⁴√n	18.935523244879
⁵√n	10.515304378066

Divisors of 128561

1, 59, 2179, 128561

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	-128560	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 128561 can be divided by 4 positive divisors. The sum of these divisors (counting 128561) is 1, the average is 0.25.

Base conversion 128561

Base	System	Value
2	Binary	11111011000110001
3	Ternary	20112100112
4	Quaternary	133120301
5	Quinary	13103221
6	Senary	2431105
8	Octal	373061
10	Decimal	128561
12	Duodecimal	62495
16	Hexadecimal	1f631
20	Vigesimal	g181
36	Base36	2r75

Cryptographic Hash Functions

md5	888cf840fce77d0077da7fbdfcb7859e
sha1	553085d857bbaf725f9921f6e87770034a6dd6e5
sha256	c67f8715e4c53d34a745c357cb580e5be864a3a17097637a73cd8e9f7c93bbea
sha512	c58012d2dfb02d56e491a5f162e443b167900736b9e010219ee5fffabd0d68fc3e33e78786c112ea7ac7810609e126294b806b00f6b35f12d8c58fa28448daf8
ripemd-160	534935e5f82ada14e414a5ae5fb73fd53458337f

128561 as geometric shapes

Circle

Radius = n

Diameter	257122
Circumference	807772.58627631
Area	51924025732.135

Sphere

Radius = n

Volume	8.9005395628653E+15
Surface area	207696102928.54
Circumference	807772.58627631

Square

Length = n

Perimeter	514244
Area	16527930721
Diagonal	181812.70979225

Cube

Length = n

Surface area	99167584326
Volume	2124847301422481
Space diagonal	222674.18387186

Equilateral Triangle

Length = n

Perimeter	385683
Area	7156803938.1876
Altitude	111337.09193593

Triangular Pyramid

Length = n

Surface area	7156803938.1876
Volume	2.504156559703E+14
Height	60604.236597416