642744979 (number)

642744979 is an odd 9-digits composite number following 642744978 and preceding 642744980. In scientific notation, it is written as 6.42744979 × 10^8. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 622011240 positive integers (up to 642744979) that are relatively prime to 642744979.

Interesting facts

Basic properties

Name

Name six hundred forty-two million seven hundred forty-four thousand nine hundred seventy-nine

Notation

Scientific notation 6.42744979 × 10^8
Engineering notation 6.42744979 × 10^6

Prime Factorization of 642744979

Prime Factorization 31 × 20733709

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 642744979
Product of the distinct prime numbers

The prime factorization of 642744979 is 31 × 20733709. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 77, 25, 93, 208, 4431, 1926, 24514, 53787, 547013, 857391, 1971247, 1693999, 39853270, 91534821, 486647900, 564460161, 358380519, 1547321524

Basic calculations (n = 642744979)

Multiplication

n×y
n×2 1285489958
n×3 1928234937
n×4 2570979916
n×5 3213724895

Division

n÷y
n÷2 321372489.5
n÷3 214248326.33333
n÷3 160686244.75
n÷5 128548995.8

Exponentiation

ny
n2 413121108029710441
n3 2.6553151790501E+26
n4 1.706690498997E+35
n5 1.0969667489373E+44

Nth Root

y√n
2√n 25352.415644273
3√n 863.00417666634
4√n 159.22441912054
5√n 57.757413789331

Divisors of 642744979

1, 31, 20733709, 642744979

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 -642744978
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 642744979 can be divided by 4 positive divisors. The sum of these divisors (counting 642744979) is 1, the average is 0.25.

Base conversion 642744979

Base System Value
2 Binary 100110010011111000001010010011
3 Ternary 1122210102211100121
4 Quaternary 212103320022103
5 Quinary 2304020314404
6 Senary 143440131111
8 Octal 4623701223
10 Decimal 642744979
12 Duodecimal 15b306a97
16 Hexadecimal 264f8293
20 Vigesimal a0h328j
36 Base36 amo977

Cryptographic Hash Functions

md5 0f2045fc8092535846a54cc421f5b2e8
sha1 fd0f7a376a58f749d372c8e52cb3711a240397a3
sha256 27328cd2a87caef451293f7ef0938e53e2c429768531d55b3401f7faecf3db44
sha512 c2d1321df8d98af58d4972fda3c717339b88cb677a46cb4ae910a90d8040fec8d756bd197ca3d42b244cd852fd0cb2039fbe31f37a20874d06b0e641e4a3eae1
ripemd-160 a3c921652b105714382be5697d401345206bee7f

642744979 as geometric shapes

Circle

Radius = n
Diameter 1285489958
Circumference 4038485808.3163
Area 1.297858238029E+18

Sphere

Radius = n
Volume 1.1122558212626E+27
Surface area 5.1914329521161E+18
Circumference 4038485808.3163

Square

Length = n
Perimeter 2570979916
Area 413121108029710441
Diagonal 908978666.44901

Cube

Length = n
Surface area 2478726648178262646
Volume 2.6553151790501E+26
Space diagonal 1113266959.9378

Equilateral Triangle

Length = n
Perimeter 1928234937
Area 1.7888668719665E+17
Altitude 556633479.9689

Triangular Pyramid

Length = n
Surface area 1.7888668719665E+17
Volume 3.1293189488232E+25
Height 302992888.81634