644920481 (number)

644920481 is an odd 9-digits prime number following 644920480 and preceding 644920482. In scientific notation, it is written as 6.44920481 × 10^8. The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors. There are 644920480 positive integers (up to 644920481) that are relatively prime to 644920481.

Interesting facts

Basic properties

Name

Name six hundred forty-four million nine hundred twenty thousand four hundred eighty-one

Notation

Scientific notation 6.44920481 × 10^8
Engineering notation 6.44920481 × 10^6

Prime Factorization of 644920481

Prime Factorization 644920481

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 644920481
Product of the distinct prime numbers

The prime factorization of 644920481 is 644920481. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 5, 12, 40, 240, 133, 9636, 4388, 8954, 91742, 48007, 852022, 6410405, 7272445, 14569429, 85699466, 200027368, 641567338, 4705084554, 925694074

Basic calculations (n = 644920481)

Multiplication

n×y
n×2 1289840962
n×3 1934761443
n×4 2579681924
n×5 3224602405

Division

n÷y
n÷2 322460240.5
n÷3 214973493.66667
n÷3 161230120.25
n÷5 128984096.2

Exponentiation

ny
n2 415922426813271361
n3 2.682368915591E+26
n4 1.7299146512624E+35
n5 1.1156573889811E+44

Nth Root

y√n
2√n 25395.284621362
3√n 863.97675164996
4√n 159.35898035995
5√n 57.796459320874

Divisors of 644920481

1, 644920481

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 644920482
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 322460241
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 25395.284641051
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999968988
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 644920481 can be divided by 2 positive divisors. The sum of these divisors (counting 644920481) is 644920482, the average is 322460241.

Base conversion 644920481

Base System Value
2 Binary 100110011100001011010010100001
3 Ternary 1122221112100120202
4 Quaternary 212130023102201
5 Quinary 2310044423411
6 Senary 143554514545
8 Octal 4634132241
10 Decimal 644920481
12 Duodecimal 15bb95a55
16 Hexadecimal 2670b4a1
20 Vigesimal a1af141
36 Base36 anyvtt

Cryptographic Hash Functions

md5 7f61ce7e8219f273d355bd366ef46b38
sha1 bae8807e954a3f80170b1db933ceda96a1c4cad8
sha256 f90eda320efdc2545e412b8b76835e16644288468bc50a5aab9a54248945e1c0
sha512 3a3df8173cfa46df043b3ac0d0e42e2e80e17c220b2467be5890b9ff5be1f0c27e94f5b3052cd73d27034985f167f24a8ff362c2a8fdefe58b26f1e1cc760e85
ripemd-160 58bc241759a6e2356ec020edde43de8253fdab99

644920481 as geometric shapes

Circle

Radius = n
Diameter 1289840962
Circumference 4052154890.5184
Area 1.3066588405398E+18

Sphere

Radius = n
Volume 1.1235880639251E+27
Surface area 5.2266353621592E+18
Circumference 4052154890.5184

Square

Length = n
Perimeter 2579681924
Area 415922426813271361
Diagonal 912055290.88238

Cube

Length = n
Surface area 2495534560879628166
Volume 2.682368915591E+26
Space diagonal 1117035039.9338

Equilateral Triangle

Length = n
Perimeter 1934761443
Area 1.8009969381198E+17
Altitude 558517519.96688

Triangular Pyramid

Length = n
Surface area 1.8009969381198E+17
Volume 3.1612020830974E+25
Height 304018430.29413