128021221 (number)

128021221 is an odd 9-digits composite number following 128021220 and preceding 128021222. In scientific notation, it is written as 1.28021221 × 10^8. The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors. There are 118004688 positive integers (up to 128021221) that are relatively prime to 128021221.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28021221 × 10^8
Engineering notation 1.28021221 × 10^6

Prime Factorization of 128021221

Prime Factorization 19 × 37 × 182107

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128021221
Product of the distinct prime numbers

The prime factorization of 128021221 is 19 × 37 × 182107. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 6, 32, 46, 883, 213, 3446, 1667, 66212, 18698, 171709, 316907, 1268390, 8388272, 90360279, 43176383, 593784938, 233027256, 320186446, 2784895825

Basic calculations (n = 128021221)

Multiplication

n×y
n×2 256042442
n×3 384063663
n×4 512084884
n×5 640106105

Division

n÷y
n÷2 64010610.5
n÷3 42673740.333333
n÷3 32005305.25
n÷5 25604244.2

Exponentiation

ny
n2 16389433026330841
n3 2.0981952275286E+24
n4 2.6861351492458E+32
n5 3.4388230157747E+40

Nth Root

y√n
2√n 11314.64630468
3√n 503.99626923626
4√n 106.3703262413
5√n 41.8269688565

Divisors of 128021221

1, 19, 37, 703, 182107, 3460033, 6737959, 128021221

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 -128021220
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 128021221 can be divided by 8 positive divisors. The sum of these divisors (counting 128021221) is 1, the average is 0.125.

Base conversion 128021221

Base System Value
2 Binary 111101000010111001011100101
3 Ternary 22220220011002201
4 Quaternary 13220113023211
5 Quinary 230233134341
6 Senary 20411534501
8 Octal 750271345
10 Decimal 128021221
12 Duodecimal 36a5a431
16 Hexadecimal 7a172e5
20 Vigesimal 2002d11
36 Base36 247xt1

Cryptographic Hash Functions

md5 9454cf52da3695f86d69d113b923089a
sha1 f24556fb29fdf487bbc9257658e0d3949a1c76e4
sha256 9373e7eb2fbc066dd21c5314b4ffa9bb8334b6e75e9d2afebb424d4418032ed2
sha512 e0602bfe31720b8d21b4446670118046feba31131b8d43e34c92a28313805618981bd93c2606da5d4afd5fd6643d250701ef6f20fc9982bcbc27448505e29f2c
ripemd-160 f0c3fbbc4181fdcb459876d5fc4a8f7437f14187

128021221 as geometric shapes

Circle

Radius = n
Diameter 256042442
Circumference 804381054.79439
Area 5.1488922392023E+16

Sphere

Radius = n
Volume 8.7888996168013E+24
Surface area 2.0595568956809E+17
Circumference 804381054.79439

Square

Length = n
Perimeter 512084884
Area 16389433026330841
Diagonal 181049347.00976

Cube

Length = n
Surface area 98336598157985046
Volume 2.0981952275286E+24
Space diagonal 221739259.219

Equilateral Triangle

Length = n
Perimeter 384063663
Area 7.0968326772131E+15
Altitude 110869629.6095

Triangular Pyramid

Length = n
Surface area 7.0968326772131E+15
Volume 2.4727467893979E+23
Height 60349782.336588