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

128900 (number)

128900 is an even 6-digits composite number following 128899 and preceding 128901. In scientific notation, it is written as 1.28900 × 10^5. The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors. There are 51520 positive integers (up to 128900) that are relatively prime to 128900.

Interesting facts

128900 has 12 divisors, whose sum is 234780
The reverse of 128900 is 009821
Previous prime number is 25

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 20
Digital Root 2

Name

Name	one hundred twenty-eight thousand nine hundred

Notation

Scientific notation	1.28900 × 10^5
Engineering notation	1.28900 × 10^3

Prime Factorization of 128900

Prime Factorization 2 × 2 × 25 × 1289

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	64450	Product of the distinct prime numbers

The prime factorization of 128900 is 2 × 2 × 25 × 1289. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 8, 91, 82, 77, 199, 9917, 6735, 74709, 84172, 412800, 365750, 5507901, 6311619, 82110579, 2514933, 733546795, 124384890, 5036310709, 9648676577

Basic calculations (n = 128900)

Multiplication

n×y

n×2	257800
n×3	386700
n×4	515600
n×5	644500

Division

n÷y

n÷2	64450
n÷3	42966.666666667
n÷3	32225
n÷5	25780

Exponentiation

n^y

n²	16615210000
n³	2141700569000000
n⁴	2.760652033441E+20
n⁵	3.5584804711054E+25

Nth Root

^y√n

²√n	359.02646142032
³√n	50.514683832457
⁴√n	18.947993598804
⁵√n	10.520844058466

Divisors of 128900

1, 2, 4, 25, 50, 100, 1289, 2578, 5156, 32225, 64450, 128900

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-128899	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128900 can be divided by 12 positive divisors. The sum of these divisors (counting 128900) is 1, the average is 0.083333333333333.

Base conversion 128900

Base	System	Value
2	Binary	11111011110000100
3	Ternary	20112211002
4	Quaternary	133132010
5	Quinary	13111100
6	Senary	2432432
8	Octal	373604
10	Decimal	128900
12	Duodecimal	62718
16	Hexadecimal	1f784
20	Vigesimal	g250
36	Base36	2rgk

Cryptographic Hash Functions

md5	56dfc41867dc4d05e285222c24c4e7c2
sha1	b7bdd424cbfe0172bd487e89fa80fe7c8b85b117
sha256	350d46e5be8373597453a94469d7b947f4099460275824ad4730cc8b6a503b08
sha512	5c1dbe1c44cd66034914dd6732f5b5840f4dc9a60051bd7a1c3665a1346387a596e3dfa313b634b958d7e86fc8e218a4c3e0c9e884d62c439dc210f53ee6ba1e
ripemd-160	b8e6ce1be6647e709323d0e3c1b8c1774fb49fae

128900 as geometric shapes

Circle

Radius = n

Diameter	257800
Circumference	809902.58609545
Area	52198221673.852

Sphere

Radius = n

Volume	8.9711343650126E+15
Surface area	208792886695.41
Circumference	809902.58609545

Square

Length = n

Perimeter	515600
Area	16615210000
Diagonal	182292.12818989

Cube

Length = n

Surface area	99691260000
Volume	2141700569000000
Space diagonal	223261.34909563

Equilateral Triangle

Length = n

Perimeter	386700
Area	7194596974.6066
Altitude	111630.67454781

Triangular Pyramid

Length = n

Surface area	7194596974.6066
Volume	2.5240183260183E+14
Height	60764.042729964