643957980 (number)

643957980 is an even 9-digits composite number following 643957979 and preceding 643957981. In scientific notation, it is written as 6.43957980 × 10^8. The sum of its digits is 51. It has a total of 5 prime factors and 24 positive divisors. There are 171584320 positive integers (up to 643957980) that are relatively prime to 643957980.

Interesting facts

Basic properties

Name

Name six hundred forty-three million nine hundred fifty-seven thousand nine hundred eighty

Notation

Scientific notation 6.43957980 × 10^8
Engineering notation 6.43957980 × 10^6

Prime Factorization of 643957980

Prime Factorization 2 × 2 × 15 × 1511 × 7103

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 321978990
Product of the distinct prime numbers

The prime factorization of 643957980 is 2 × 2 × 15 × 1511 × 7103. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 3, 74, 68, 499, 688, 7881, 2389, 39039, 86877, 960008, 667638, 6010826, 2304407, 53629816, 53367218, 486102870, 577397198, 3027088862, 5304499907

Basic calculations (n = 643957980)

Multiplication

n×y
n×2 1287915960
n×3 1931873940
n×4 2575831920
n×5 3219789900

Division

n÷y
n÷2 321978990
n÷3 214652660
n÷3 160989495
n÷5 128791596

Exponentiation

ny
n2 414681880005680400
n3 2.6703770579106E+26
n4 1.7196106160505E+35
n5 1.1073569786984E+44

Nth Root

y√n
2√n 25376.327157412
3√n 863.54672833846
4√n 159.29948887995
5√n 57.779197537313

Divisors of 643957980

1, 2, 4, 15, 30, 60, 1511, 3022, 6044, 7103, 14206, 22665, 28412, 45330, 90660, 106545, 213090, 426180, 10732633, 21465266, 42930532, 160989495, 321978990, 643957980

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 -643957979
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 643957980 can be divided by 24 positive divisors. The sum of these divisors (counting 643957980) is 1, the average is 0.041666666666667.

Base conversion 643957980

Base System Value
2 Binary 100110011000100000010011011100
3 Ternary 1122212201110021120
4 Quaternary 212120200103130
5 Quinary 2304323123410
6 Senary 143522130540
8 Octal 4630402334
10 Decimal 643957980
12 Duodecimal 15b7b0a50
16 Hexadecimal 266204dc
20 Vigesimal a14eej0
36 Base36 ane95o

Cryptographic Hash Functions

md5 bb3d416c3a517f3e2c14065d9cbb5188
sha1 70869ae829fe7650afa2ec1cfc6b0fafab7ead51
sha256 6a0ebe824e758311f70b655309aed81772a4345fd78fa71882fa652cc5d529cd
sha512 18db1fa122135bb290d65005ca36d38dd90a2bf9f7e68b9bc638bc2034cd74802f9a2bf5dd4e0ed3bb6f54e002bbcf5b5a5b792281057eced5bc846ee7a73ad1
ripemd-160 2b6a9551c227ca50e7134ad06aac55c5a07d1983

643957980 as geometric shapes

Circle

Radius = n
Diameter 1287915960
Circumference 4046107318.377
Area 1.3027615478026E+18

Sphere

Radius = n
Volume 1.1185649263262E+27
Surface area 5.2110461912106E+18
Circumference 4046107318.377

Square

Length = n
Perimeter 2575831920
Area 414681880005680400
Diagonal 910694108.91438

Cube

Length = n
Surface area 2488091280034082400
Volume 2.6703770579106E+26
Space diagonal 1115367939.2994

Equilateral Triangle

Length = n
Perimeter 1931873940
Area 1.79562521287E+17
Altitude 557683969.64971

Triangular Pyramid

Length = n
Surface area 1.79562521287E+17
Volume 3.1470695432893E+25
Height 303564702.97146