644268889 (number)

644268889 is an odd 9-digits composite number following 644268888 and preceding 644268890. In scientific notation, it is written as 6.44268889 × 10^8. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 585698980 positive integers (up to 644268889) that are relatively prime to 644268889.

Interesting facts

Basic properties

Name

Name six hundred forty-four million two hundred sixty-eight thousand eight hundred eighty-nine

Notation

Scientific notation 6.44268889 × 10^8
Engineering notation 6.44268889 × 10^6

Prime Factorization of 644268889

Prime Factorization 11 × 58569899

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 644268889
Product of the distinct prime numbers

The prime factorization of 644268889 is 11 × 58569899. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 6, 48, 36, 921, 774, 5221, 9557, 14993, 47261, 938086, 470967, 105913, 8869995, 5647992, 32170607, 754996187, 280068746, 4272301841, 948362360

Basic calculations (n = 644268889)

Multiplication

n×y
n×2 1288537778
n×3 1932806667
n×4 2577075556
n×5 3221344445

Division

n÷y
n÷2 322134444.5
n÷3 214756296.33333
n÷3 161067222.25
n÷5 128853777.8

Exponentiation

ny
n2 415082401333294321
n3 2.6742467755045E+26
n4 1.7229339989661E+35
n5 1.1100327733342E+44

Nth Root

y√n
2√n 25382.452383487
3√n 863.68568215261
4√n 159.31871322443
5√n 57.784775728685

Divisors of 644268889

1, 11, 58569899, 644268889

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 -644268888
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 644268889 can be divided by 4 positive divisors. The sum of these divisors (counting 644268889) is 1, the average is 0.25.

Base conversion 644268889

Base System Value
2 Binary 100110011001101100001101011001
3 Ternary 1122220022020202201
4 Quaternary 212121230031121
5 Quinary 2304413101024
6 Senary 143532530201
8 Octal 4631541531
10 Decimal 644268889
12 Duodecimal 15b920961
16 Hexadecimal 2666c359
20 Vigesimal a16dc49
36 Base36 ankx21

Cryptographic Hash Functions

md5 d02eb19b4300b1f90c451a8b9eccc74e
sha1 68e9c96c4fc4e3ec3f36c60537c7714a98216504
sha256 2fdcd5b5cd089869759c8016a5dec4d8f4d9dcb7abae39969af8092d25eecb79
sha512 e44c96763709a9de6f689d4d265729436decb64377de24530b22ef35aca13ec99932b1a0ae3d40043f74056b00f5332209ad5d13f64d72453867ac3238ce5ebb
ripemd-160 71d22f1766be735b6147e03fa157ff060e6b85f8

644268889 as geometric shapes

Circle

Radius = n
Diameter 1288537778
Circumference 4048060817.2377
Area 1.3040198226631E+18

Sphere

Radius = n
Volume 1.1201858698415E+27
Surface area 5.2160792906524E+18
Circumference 4048060817.2377

Square

Length = n
Perimeter 2577075556
Area 415082401333294321
Diagonal 911133800.63885

Cube

Length = n
Surface area 2490494407999765926
Volume 2.6742467755045E+26
Space diagonal 1115906449.484

Equilateral Triangle

Length = n
Perimeter 1932806667
Area 1.7973595210924E+17
Altitude 557953224.74198

Triangular Pyramid

Length = n
Surface area 1.7973595210924E+17
Volume 3.1516300492092E+25
Height 303711266.87962