128947982 (number)

128947982 is an even 9-digits composite number following 128947981 and preceding 128947983. In scientific notation, it is written as 1.28947982 × 10^8. The sum of its digits is 50. It has a total of 5 prime factors and 24 positive divisors. There are 61315056 positive integers (up to 128947982) that are relatively prime to 128947982.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred forty-seven thousand nine hundred eighty-two

Notation

Scientific notation 1.28947982 × 10^8
Engineering notation 1.28947982 × 10^6

Prime Factorization of 128947982

Prime Factorization 2 × 23 × 23 × 397 × 307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5606434
Product of the distinct prime numbers

The prime factorization of 128947982 is 2 × 23 × 23 × 397 × 307. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 3, 65, 79, 965, 394, 5925, 6835, 29164, 42999, 965278, 796574, 330223, 6963897, 6432707, 34878210, 840258708, 656926133, 7316581986, 1157899215

Basic calculations (n = 128947982)

Multiplication

n×y
n×2 257895964
n×3 386843946
n×4 515791928
n×5 644739910

Division

n÷y
n÷2 64473991
n÷3 42982660.666667
n÷3 32236995.5
n÷5 25789596.4

Exponentiation

ny
n2 16627582061872324
n3 2.1440931524178E+24
n4 2.764764852243E+32
n5 3.5651084840126E+40

Nth Root

y√n
2√n 11355.52649594
3√n 505.20950951349
4√n 106.56231273738
5√n 41.887352349968

Divisors of 128947982

1, 2, 23, 46, 307, 397, 529, 614, 794, 1058, 7061, 9131, 14122, 18262, 121879, 162403, 210013, 243758, 324806, 420026, 2803217, 5606434, 64473991, 128947982

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128947981
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128947982 can be divided by 24 positive divisors. The sum of these divisors (counting 128947982) is 1, the average is 0.041666666666667.

Base conversion 128947982

Base System Value
2 Binary 111101011111001011100001110
3 Ternary 22222122020101012
4 Quaternary 13223321130032
5 Quinary 231002313412
6 Senary 20443445222
8 Octal 753713416
10 Decimal 128947982
12 Duodecimal 37226812
16 Hexadecimal 7af970e
20 Vigesimal 205i9j2
36 Base36 24rswe

Cryptographic Hash Functions

md5 b4e6f75a4b8dadadaa8a80832708e5f3
sha1 bf6a1fd7cd801461492e875dcf041114bdf4c86e
sha256 76a8d7b105e051cc23742a0660ee70e76f96977e46ed96189325f8732fe1afc9
sha512 bc4a72a798381a2027d5e2b2f5a984a2e9db4300fd9e7c83438596ecd4dbf643790290c4cb91ba6c1b99cf4f0fd5827078d26c50ef3f082af5008f8c5738ca16
ripemd-160 9187163478853db2547ec077c5681143e91f664b

128947982 as geometric shapes

Circle

Radius = n
Diameter 257895964
Circumference 810204065.89286
Area 5.223708965254E+16

Sphere

Radius = n
Volume 8.9811563949974E+24
Surface area 2.0894835861016E+17
Circumference 810204065.89286

Square

Length = n
Perimeter 515791928
Area 16627582061872324
Diagonal 182359984.98504

Cube

Length = n
Surface area 99765492371233944
Volume 2.1440931524178E+24
Space diagonal 223344456.35748

Equilateral Triangle

Length = n
Perimeter 386843946
Area 7.1999542345459E+15
Altitude 111672228.17874

Triangular Pyramid

Length = n
Surface area 7.1999542345459E+15
Volume 2.5268380126172E+23
Height 60786661.661681