128485721, one hundred twenty-eight million four hundred eighty-five thousand seven hundred twenty-one: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

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

Interesting facts

128485721 has 8 divisors, whose sum is 158136384
The reverse of 128485721 is 127584821
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2

Name

Name	one hundred twenty-eight million four hundred eighty-five thousand seven hundred twenty-one

Notation

Scientific notation	1.28485721 × 10^8
Engineering notation	1.28485721 × 10^6

Prime Factorization of 128485721

Prime Factorization 7 × 13 × 1411931

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	128485721	Product of the distinct prime numbers

The prime factorization of 128485721 is 7 × 13 × 1411931. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 79, 90, 580, 902, 9621, 2017, 75473, 16951, 217284, 456373, 2838475, 301052, 40030255, 94375724, 375157352, 649229923, 2081641591, 5181400707

Basic calculations (n = 128485721)

Multiplication

n×y

n×2	256971442
n×3	385457163
n×4	513942884
n×5	642428605

Division

n÷y

n÷2	64242860.5
n÷3	42828573.666667
n÷3	32121430.25
n÷5	25697144.2

Exponentiation

n^y

n²	16508580500889841
n³	2.1211168683434E+24
n⁴	2.7253323015436E+32
n⁵	3.5016628572842E+40

Nth Root

^y√n

²√n	11335.154211567
³√n	504.60508418712
⁴√n	106.46668122735
⁵√n	41.857277099024

Divisors of 128485721

1, 7, 13, 91, 1411931, 9883517, 18355103, 128485721

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-128485720	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128485721 can be divided by 8 positive divisors. The sum of these divisors (counting 128485721) is 1, the average is 0.125.

Base conversion 128485721

Base	System	Value
2	Binary	111101010001000100101011001
3	Ternary	22221202202021102
4	Quaternary	13222020211121
5	Quinary	230343020341
6	Senary	20425521145
8	Octal	752104531
10	Decimal	128485721
12	Duodecimal	370431b5
16	Hexadecimal	7a88959
20	Vigesimal	2030e61
36	Base36	24hw7t

Cryptographic Hash Functions

md5	e2cdb36542fa911adf9822b633396ce7
sha1	f198fc05c81461de01cfe87546141f2a829d4fec
sha256	16e2a3a4dc493740a15b5a8675e7da61557f0c3c7c5c1b1d328583aeaceeb7af
sha512	1e86c6c19155ee46e562a87bba1da2191d46506fbabab4c7c5969a8417a9f51237bbf401c07036568fe0cb2daa27bf9029f9e9ad2861d443ad7a92b0537b4670
ripemd-160	dc0d00dc0d09707bfcd4ed3a366f82d56d756575

128485721 as geometric shapes

Circle

Radius = n

Diameter	256971442
Circumference	807299594.36958
Area	5.1863235222791E+16

Sphere

Radius = n

Volume	8.8849135613239E+24
Surface area	2.0745294089116E+17
Circumference	807299594.36958

Square

Length = n

Perimeter	513942884
Area	16508580500889841
Diagonal	181706249.20949

Cube

Length = n

Surface area	99051483005339046
Volume	2.1211168683434E+24
Space diagonal	222543796.81912

Equilateral Triangle

Length = n

Perimeter	385457163
Area	7.1484250470955E+15
Altitude	111271898.40956

Triangular Pyramid

Length = n

Surface area	7.1484250470955E+15
Volume	2.499760202158E+23
Height	60568749.736495