128972208 (number)

128972208 is an even 9-digits composite number following 128972207 and preceding 128972209. In scientific notation, it is written as 1.28972208 × 10^8. The sum of its digits is 39. It has a total of 6 prime factors and 20 positive divisors. There are 42990720 positive integers (up to 128972208) that are relatively prime to 128972208.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28972208 × 10^8
Engineering notation 1.28972208 × 10^6

Prime Factorization of 128972208

Prime Factorization 2 × 2 × 2 × 2 × 3 × 2686921

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 16121526
Product of the distinct prime numbers

The prime factorization of 128972208 is 2 × 2 × 2 × 2 × 3 × 2686921. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 7, 6, 6, 382, 308, 204, 1723, 56971, 14617, 737283, 160347, 4519727, 7684543, 85626869, 71189702, 784847980, 188244224, 4764100642, 7028193386

Basic calculations (n = 128972208)

Multiplication

n×y
n×2 257944416
n×3 386916624
n×4 515888832
n×5 644861040

Division

n÷y
n÷2 64486104
n÷3 42990736
n÷3 32243052
n÷5 25794441.6

Exponentiation

ny
n2 16633830436395264
n3 2.1453018388795E+24
n4 2.7668431498675E+32
n5 3.5684587022809E+40

Nth Root

y√n
2√n 11356.593151117
3√n 505.24114614451
4√n 106.56731746233
5√n 41.888926142333

Divisors of 128972208

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 2686921, 5373842, 8060763, 10747684, 16121526, 21495368, 32243052, 42990736, 64486104, 128972208

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128972207
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128972208 can be divided by 20 positive divisors. The sum of these divisors (counting 128972208) is 1, the average is 0.05.

Base conversion 128972208

Base System Value
2 Binary 111101011111111010110110000
3 Ternary 22222200110121110
4 Quaternary 13223333112300
5 Quinary 231004102313
6 Senary 20444153320
8 Octal 753772660
10 Decimal 128972208
12 Duodecimal 37238840
16 Hexadecimal 7aff5b0
20 Vigesimal 2061aa8
36 Base36 24sblc

Cryptographic Hash Functions

md5 b5508172e0e4a9cc9489663c50bdc983
sha1 97678dabaf3994190b8c83415928c9dcebb27cae
sha256 22dce2f832dc4fa05ce5538a7a0bbb19ae3433a0fbeda300b71a4100d1c89771
sha512 c0139dbb89a2440363ea7ce390add3b58a12521c3663160f10ca9df6d8641c6f05a2e2c73a246f77a62ce45ef61b16917aebf13556e6b83a4c07e20cf83b4a09
ripemd-160 03ab9a98858cbd4559bccf5ff11a12c9de1dd01f

128972208 as geometric shapes

Circle

Radius = n
Diameter 257944416
Circumference 810356282.34011
Area 5.2256719500038E+16

Sphere

Radius = n
Volume 8.9862193290087E+24
Surface area 2.0902687800015E+17
Circumference 810356282.34011

Square

Length = n
Perimeter 515888832
Area 16633830436395264
Diagonal 182394245.7228

Cube

Length = n
Surface area 99802982618371584
Volume 2.1453018388795E+24
Space diagonal 223386417.02034

Equilateral Triangle

Length = n
Perimeter 386916624
Area 7.2026598600805E+15
Altitude 111693208.51017

Triangular Pyramid

Length = n
Surface area 7.2026598600805E+15
Volume 2.5282624632728E+23
Height 60798081.907601