644920993 (number)

644920993 is an odd 9-digits composite number following 644920992 and preceding 644920994. In scientific notation, it is written as 6.44920993 × 10^8. The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors. There are 581863680 positive integers (up to 644920993) that are relatively prime to 644920993.

Interesting facts

Basic properties

Name

Name six hundred forty-four million nine hundred twenty thousand nine hundred ninety-three

Notation

Scientific notation 6.44920993 × 10^8
Engineering notation 6.44920993 × 10^6

Prime Factorization of 644920993

Prime Factorization 527 × 107 × 11437

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 644920993
Product of the distinct prime numbers

The prime factorization of 644920993 is 527 × 107 × 11437. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 4, 28, 90, 531, 883, 5877, 4291, 83718, 42116, 738336, 510376, 9548812, 1151186, 28495920, 13002130, 580037888, 246362807, 823805682, 2113480164

Basic calculations (n = 644920993)

Multiplication

n×y
n×2 1289841986
n×3 1934762979
n×4 2579683972
n×5 3224604965

Division

n÷y
n÷2 322460496.5
n÷3 214973664.33333
n÷3 161230248.25
n÷5 128984198.6

Exponentiation

ny
n2 415923087212106049
n3 2.6823753041646E+26
n4 1.7299201447605E+35
n5 1.1156618175696E+44

Nth Root

y√n
2√n 25395.294701972
3√n 863.97698028589
4√n 159.35901198857
5√n 57.79646849775

Divisors of 644920993

1, 107, 527, 11437, 56389, 1223759, 6027299, 644920993

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -644920992
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 644920993 can be divided by 8 positive divisors. The sum of these divisors (counting 644920993) is 1, the average is 0.125.

Base conversion 644920993

Base System Value
2 Binary 100110011100001011011010100001
3 Ternary 1122221112101021201
4 Quaternary 212130023122201
5 Quinary 2310044432433
6 Senary 143554521201
8 Octal 4634133241
10 Decimal 644920993
12 Duodecimal 15bb96201
16 Hexadecimal 2670b6a1
20 Vigesimal a1af29d
36 Base36 anyw81

Cryptographic Hash Functions

md5 3b98c50d26d1b3d9d1cd235a801f8eb3
sha1 40adc1048e7afe783fc581b39d3c75e1a49d2a7e
sha256 a43550a1b2fcf29e7eabad2c7f5135a5174a818edf7d2c1825023c1a295f1a94
sha512 9579db7fbad52a58d5caed9b3c022040cd375feb48e74658eba533d3ba92dd382c0adc96a204cd13b449aba8b833a44928a3d2965ebb1e23161718ce85de583b
ripemd-160 bf25d42d2e327892864a704e11c4213a136e0120

644920993 as geometric shapes

Circle

Radius = n
Diameter 1289841986
Circumference 4052158107.5093
Area 1.3066609152439E+18

Sphere

Radius = n
Volume 1.1235907399645E+27
Surface area 5.2266436609758E+18
Circumference 4052158107.5093

Square

Length = n
Perimeter 2579683972
Area 415923087212106049
Diagonal 912056014.95972

Cube

Length = n
Surface area 2495538523272636294
Volume 2.6823753041646E+26
Space diagonal 1117035926.7438

Equilateral Triangle

Length = n
Perimeter 1934762979
Area 1.8009997977307E+17
Altitude 558517963.37189

Triangular Pyramid

Length = n
Surface area 1.8009997977307E+17
Volume 3.1612096121035E+25
Height 304018671.65324