128225981 (number)

128225981 is an odd 9-digits composite number following 128225980 and preceding 128225982. In scientific notation, it is written as 1.28225981 × 10^8. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 118362432 positive integers (up to 128225981) that are relatively prime to 128225981.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred twenty-five thousand nine hundred eighty-one

Notation

Scientific notation 1.28225981 × 10^8
Engineering notation 1.28225981 × 10^6

Prime Factorization of 128225981

Prime Factorization 13 × 9863537

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128225981
Product of the distinct prime numbers

The prime factorization of 128225981 is 13 × 9863537. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 8, 52, 42, 763, 818, 3204, 9575, 48422, 55283, 97071, 142802, 7430261, 9116305, 26418580, 63560504, 478058050, 708967877, 9904206824, 6668206950

Basic calculations (n = 128225981)

Multiplication

n×y
n×2 256451962
n×3 384677943
n×4 512903924
n×5 641129905

Division

n÷y
n÷2 64112990.5
n÷3 42741993.666667
n÷3 32056495.25
n÷5 25645196.2

Exponentiation

ny
n2 16441902203412361
n3 2.1082790395386E+24
n4 2.7033614806658E+32
n5 3.4664117785598E+40

Nth Root

y√n
2√n 11323.691138494
3√n 504.26482707095
4√n 106.41283352347
5√n 41.840340102351

Divisors of 128225981

1, 13, 9863537, 128225981

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128225980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128225981 can be divided by 4 positive divisors. The sum of these divisors (counting 128225981) is 1, the average is 0.25.

Base conversion 128225981

Base System Value
2 Binary 111101001001001001010111101
3 Ternary 22221021112222102
4 Quaternary 13221021022331
5 Quinary 230311212411
6 Senary 20420154445
8 Octal 751111275
10 Decimal 128225981
12 Duodecimal 36b38a25
16 Hexadecimal 7a492bd
20 Vigesimal 20184j1
36 Base36 24cbst

Cryptographic Hash Functions

md5 e8ad33b8ad7a552ee9b9b9888b5be306
sha1 f42c8dc1e8c658dfd0a49067df474b28315af858
sha256 f0ed636e7ce3d689f9d23766e562e55fd5c4618f55c500a7d3c5ba090703fa90
sha512 b3620e7f3ffea3bcc32007fa16880fbeb827729d86b76a915ac309d0ff2d7670fd9f7f73c4efb1179771f0ec26e58d73b305734a86c20959e63f769fe6a82074
ripemd-160 d21e5d8bd7ccddab588c8bd89247827c1bf97727

128225981 as geometric shapes

Circle

Radius = n
Diameter 256451962
Circumference 805667599.81789
Area 5.1653759173282E+16

Sphere

Radius = n
Volume 8.8311385897758E+24
Surface area 2.0661503669313E+17
Circumference 805667599.81789

Square

Length = n
Perimeter 512903924
Area 16441902203412361
Diagonal 181338921.37879

Cube

Length = n
Surface area 98651413220474166
Volume 2.1082790395386E+24
Space diagonal 222093913.94236

Equilateral Triangle

Length = n
Perimeter 384677943
Area 7.1195524973472E+15
Altitude 111046956.97118

Triangular Pyramid

Length = n
Surface area 7.1195524973472E+15
Volume 2.4846306758187E+23
Height 60446307.126265