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

128081 (number)

128081 is an odd 6-digits composite number following 128080 and preceding 128082. In scientific notation, it is written as 1.28081 × 10^5. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 127332 positive integers (up to 128081) that are relatively prime to 128081.

Interesting facts

128081 has 4 divisors, whose sum is 128832
The reverse of 128081 is 180821
Previous prime number is 487

Basic properties

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

Name

Name	one hundred twenty-eight thousand eighty-one

Notation

Scientific notation	1.28081 × 10^5
Engineering notation	1.28081 × 10^3

Prime Factorization of 128081

Prime Factorization 487 × 263

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	128081	Product of the distinct prime numbers

The prime factorization of 128081 is 487 × 263. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 4, 48, 46, 778, 235, 5960, 9794, 14962, 80284, 130574, 440532, 5422487, 1932620, 89682235, 21623141, 569030548, 576260741, 5248321175, 8750111771

Basic calculations (n = 128081)

Multiplication

n×y

n×2	256162
n×3	384243
n×4	512324
n×5	640405

Division

n÷y

n÷2	64040.5
n÷3	42693.666666667
n÷3	32020.25
n÷5	25616.2

Exponentiation

n^y

n²	16404742561
n³	2101135831955441
n⁴	2.6911557849268E+20
n⁵	3.4468592408922E+25

Nth Root

^y√n

²√n	357.88405943825
³√n	50.407470338053
⁴√n	18.917823855778
⁵√n	10.507440560869

Divisors of 128081

1, 263, 487, 128081

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	-128080	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 128081 can be divided by 4 positive divisors. The sum of these divisors (counting 128081) is 1, the average is 0.25.

Base conversion 128081

Base	System	Value
2	Binary	11111010001010001
3	Ternary	20111200202
4	Quaternary	133101101
5	Quinary	13044311
6	Senary	2424545
8	Octal	372121
10	Decimal	128081
12	Duodecimal	62155
16	Hexadecimal	1f451
20	Vigesimal	g041
36	Base36	2qtt

Cryptographic Hash Functions

md5	7af75ce81e9d00695af0ac15d97f11c2
sha1	de376eccf5f9909609a8c0f73dfa4e9e1c7fd4d5
sha256	5f0ad5a7aa696568f425d2754c3e6e50b31490c9d6c69b124b45be685221fc62
sha512	8c7f4afdc50ae03fc3405388208d5652f4a8f33740dc4c147ea855e735b6601a81c474e4f69b87892ee29a380accd357e5a7645491e19c92c738306e9ac18b61
ripemd-160	c8a0cd9d5c91827a704f693839530c0015185f56

128081 as geometric shapes

Circle

Radius = n

Diameter	256162
Circumference	804756.65732887
Area	51537018713.669

Sphere

Radius = n

Volume	8.8012171918207E+15
Surface area	206148074854.68
Circumference	804756.65732887

Square

Length = n

Perimeter	512324
Area	16404742561
Diagonal	181133.88728231

Cube

Length = n

Surface area	98428455366
Volume	2101135831955441
Space diagonal	221842.79948423

Equilateral Triangle

Length = n

Perimeter	384243
Area	7103461900.1849
Altitude	110921.39974211

Triangular Pyramid

Length = n

Surface area	7103461900.1849
Volume	2.4762123249496E+14
Height	60377.962427436