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

128688081 (number)

128688081 is an odd 9-digits composite number following 128688080 and preceding 128688082. In scientific notation, it is written as 1.28688081 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 84173232 positive integers (up to 128688081) that are relatively prime to 128688081.

Interesting facts

128688081 has 8 divisors, whose sum is 174821760
The reverse of 128688081 is 180886821
Previous prime number is 53

Basic properties

Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6

Name

Name	one hundred twenty-eight million six hundred eighty-eight thousand eighty-one

Notation

Scientific notation	1.28688081 × 10^8
Engineering notation	1.28688081 × 10^6

Prime Factorization of 128688081

Prime Factorization 3 × 53 × 809359

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	128688081	Product of the distinct prime numbers

The prime factorization of 128688081 is 3 × 53 × 809359. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 3, 99, 84, 990, 993, 6121, 7643, 76945, 8238, 631223, 151587, 7011536, 7438740, 97625386, 77265523, 416649036, 31702669, 5149750975, 1332453347

Basic calculations (n = 128688081)

Multiplication

n×y

n×2	257376162
n×3	386064243
n×4	514752324
n×5	643440405

Division

n÷y

n÷2	64344040.5
n÷3	42896027
n÷3	32172020.25
n÷5	25737616.2

Exponentiation

n^y

n²	16560622191462561
n³	2.1311546899853E+24
n⁴	2.7425420736836E+32
n⁵	3.5293247652411E+40

Nth Root

^y√n

²√n	11344.076912645
³√n	504.86985634361
⁴√n	106.50857670932
⁵√n	41.870453516522

Divisors of 128688081

1, 3, 53, 159, 809359, 2428077, 42896027, 128688081

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	-128688080	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 128688081 can be divided by 8 positive divisors. The sum of these divisors (counting 128688081) is 1, the average is 0.125.

Base conversion 128688081

Base	System	Value
2	Binary	111101010111001111111010001
3	Ternary	22222011000212020
4	Quaternary	13222321333101
5	Quinary	230421004311
6	Senary	20434122053
8	Octal	752717721
10	Decimal	128688081
12	Duodecimal	37120329
16	Hexadecimal	7ab9fd1
20	Vigesimal	2046041
36	Base36	24m8cx

Cryptographic Hash Functions

md5	531eb522fcd6266cfb74062df724c9ec
sha1	92d5a10195669ce8585081a89cb1a2862a8ef3be
sha256	b91796a2b59a96da58418a44451dc33a3e28832024cb30b662fbb368daef917b
sha512	aca501b6f522a3e35a11c1a08b5b91331e409ec73480fe78734ef1e8bceb0a861fb9b43ae358165e92780040e0188984fb1bf60c61965d293e43edf9201e28d4
ripemd-160	ac61baa317cdb1044096208a2f98ae0be027b9da

128688081 as geometric shapes

Circle

Radius = n

Diameter	257376162
Circumference	808571059.74834
Area	5.2026729015575E+16

Sphere

Radius = n

Volume	8.9269598902951E+24
Surface area	2.081069160623E+17
Circumference	808571059.74834

Square

Length = n

Perimeter	514752324
Area	16560622191462561
Diagonal	181992429.46597

Cube

Length = n

Surface area	99363733148775366
Volume	2.1311546899853E+24
Space diagonal	222894294.62054

Equilateral Triangle

Length = n

Perimeter	386064243
Area	7.1709597601414E+15
Altitude	111447147.31027

Triangular Pyramid

Length = n

Surface area	7.1709597601414E+15
Volume	2.5115898884102E+23
Height	60664143.155322