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

128542 (number)

128542 is an even 6-digits composite number following 128541 and preceding 128543. In scientific notation, it is written as 1.28542 × 10^5. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 64270 positive integers (up to 128542) that are relatively prime to 128542.

Interesting facts

128542 has 4 divisors, whose sum is 192816
The reverse of 128542 is 245821
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 22
Digital Root 4

Name

Name	one hundred twenty-eight thousand five hundred forty-two

Notation

Scientific notation	1.28542 × 10^5
Engineering notation	1.28542 × 10^3

Prime Factorization of 128542

Prime Factorization 2 × 64271

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	128542	Product of the distinct prime numbers

The prime factorization of 128542 is 2 × 64271. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 2, 4, 14, 318, 741, 797, 7960, 84108, 24043, 76975, 818866, 6805561, 9171077, 31347387, 55275841, 487871073, 188297689, 2430112223, 3794797828

Basic calculations (n = 128542)

Multiplication

n×y

n×2	257084
n×3	385626
n×4	514168
n×5	642710

Division

n÷y

n÷2	64271
n÷3	42847.333333333
n÷3	32135.5
n÷5	25708.4

Exponentiation

n^y

n²	16523045764
n³	2123905348596088
n⁴	2.7301104131924E+20
n⁵	3.5093385273258E+25

Nth Root

^y√n

²√n	358.52754426961
³√n	50.4678748726
⁴√n	18.934823586968
⁵√n	10.514993548818

Divisors of 128542

1, 2, 64271, 128542

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	-128541	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 128542 can be divided by 4 positive divisors. The sum of these divisors (counting 128542) is 1, the average is 0.25.

Base conversion 128542

Base	System	Value
2	Binary	11111011000011110
3	Ternary	20112022211
4	Quaternary	133120132
5	Quinary	13103132
6	Senary	2431034
8	Octal	373036
10	Decimal	128542
12	Duodecimal	6247a
16	Hexadecimal	1f61e
20	Vigesimal	g172
36	Base36	2r6m

Cryptographic Hash Functions

md5	25af42aacd2ac2fb63ecd089e1f0556d
sha1	dd1e974ef0547b2dabc72b6d09f30d616e7ba475
sha256	1bc25ff9fe502ce20b516c0dad2e9f92d236f300bbadc143a93431c5b41578ce
sha512	eaa39f06e4cfceba79e98c20b0863eb228f998a8d8af3a74fb4787d06b71fd79bc2d9f5858261415f54622898492726a1c800b83b831a45a98ace7de8519790d
ripemd-160	1682fe0f8670aea6f54a6fbb9e51822dac70fcd2

128542 as geometric shapes

Circle

Radius = n

Diameter	257084
Circumference	807653.20575548
Area	51908679187.11

Sphere

Radius = n

Volume	8.8965939200927E+15
Surface area	207634716748.44
Circumference	807653.20575548

Square

Length = n

Perimeter	514168
Area	16523045764
Diagonal	181785.83973456

Cube

Length = n

Surface area	99138274584
Volume	2123905348596088
Space diagonal	222641.27490652

Equilateral Triangle

Length = n

Perimeter	385626
Area	7154688689.7584
Altitude	111320.63745326

Triangular Pyramid

Length = n

Surface area	7154688689.7584
Volume	2.5030464576511E+14
Height	60595.279911521