128021220 (number)

128021220 is an even 9-digits composite number following 128021219 and preceding 128021221. In scientific notation, it is written as 1.28021220 × 10^8. The sum of its digits is 18. It has a total of 6 prime factors and 36 positive divisors. There are 30446592 positive integers (up to 128021220) that are relatively prime to 128021220.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million twenty-one thousand two hundred twenty

Notation

Scientific notation 1.28021220 × 10^8
Engineering notation 1.28021220 × 10^6

Prime Factorization of 128021220

Prime Factorization 2 × 2 × 154615 × 23 × 3 × 3

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 21336870
Product of the distinct prime numbers

The prime factorization of 128021220 is 2 × 2 × 154615 × 23 × 3 × 3. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 3, 4, 94, 223, 991, 9371, 2426, 99355, 60366, 503538, 944299, 5615990, 8215757, 43128225, 47597146, 825273227, 3274786, 7183418299, 4281399823

Basic calculations (n = 128021220)

Multiplication

n×y
n×2 256042440
n×3 384063660
n×4 512084880
n×5 640106100

Division

n÷y
n÷2 64010610
n÷3 42673740
n÷3 32005305
n÷5 25604244

Exponentiation

ny
n2 16389432770288400
n3 2.0981951783603E+24
n4 2.686135065318E+32
n5 3.4388228814679E+40

Nth Root

y√n
2√n 11314.646260489
3√n 503.99626792399
4√n 106.37032603358
5√n 41.826968791156

Divisors of 128021220

1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828, 154615, 309230, 463845, 618460, 927690, 1391535, 1855380, 2783070, 3556145, 5566140, 7112290, 10668435, 14224580, 21336870, 32005305, 42673740, 64010610, 128021220

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128021219
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128021220 can be divided by 36 positive divisors. The sum of these divisors (counting 128021220) is 1, the average is 0.027777777777778.

Base conversion 128021220

Base System Value
2 Binary 111101000010111001011100100
3 Ternary 22220220011002200
4 Quaternary 13220113023210
5 Quinary 230233134340
6 Senary 20411534500
8 Octal 750271344
10 Decimal 128021220
12 Duodecimal 36a5a430
16 Hexadecimal 7a172e4
20 Vigesimal 2002d10
36 Base36 247xt0

Cryptographic Hash Functions

md5 45d636811b388f9bba9318a03cc334f7
sha1 40f6eae7b6e8fdf2c9bf02ac248b6962244ef307
sha256 14194e0e214ea015f2f8bd6ed6929765fc307218319cfa2687f921477fb502b9
sha512 7a88c0cdc0cf537e1cb011a1c8487d4cb4a7f946ca38c32506a32e0079a27d6bfcb66c3d6d0c2879186bf9e83ebf97655be44f8080dcb9aeeb66f39e2a9b5cfe
ripemd-160 18dfc2011e1949d214435b829af9808b9ac86ac7

128021220 as geometric shapes

Circle

Radius = n
Diameter 256042440
Circumference 804381048.51121
Area 5.1488921587642E+16

Sphere

Radius = n
Volume 8.7888994108457E+24
Surface area 2.0595568635057E+17
Circumference 804381048.51121

Square

Length = n
Perimeter 512084880
Area 16389432770288400
Diagonal 181049345.59555

Cube

Length = n
Surface area 98336596621730400
Volume 2.0981951783603E+24
Space diagonal 221739257.48695

Equilateral Triangle

Length = n
Perimeter 384063660
Area 7.0968325663435E+15
Altitude 110869628.74348

Triangular Pyramid

Length = n
Surface area 7.0968325663435E+15
Volume 2.4727467314525E+23
Height 60349781.865183