644313985 (number)

644313985 is an odd 9-digits composite number following 644313984 and preceding 644313986. In scientific notation, it is written as 6.44313985 × 10^8. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 441815136 positive integers (up to 644313985) that are relatively prime to 644313985.

Interesting facts

Basic properties

Name

Name six hundred forty-four million three hundred thirteen thousand nine hundred eighty-five

Notation

Scientific notation 6.44313985 × 10^8
Engineering notation 6.44313985 × 10^6

Prime Factorization of 644313985

Prime Factorization 7 × 7 × 5 × 2629853

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 92044855
Product of the distinct prime numbers

The prime factorization of 644313985 is 7 × 7 × 5 × 2629853. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 76, 32, 120, 244, 6314, 4433, 13578, 88725, 627199, 801750, 7923216, 4782513, 73266201, 23335225, 555074061, 515617498, 4310457787, 4042936707

Basic calculations (n = 644313985)

Multiplication

n×y
n×2 1288627970
n×3 1932941955
n×4 2577255940
n×5 3221569925

Division

n÷y
n÷2 322156992.5
n÷3 214771328.33333
n÷3 161078496.25
n÷5 128862797

Exponentiation

ny
n2 415140511266580225
n3 2.6748083714911E+26
n4 1.7234164409468E+35
n5 1.1104213148809E+44

Nth Root

y√n
2√n 25383.340698182
3√n 863.70583308724
4√n 159.32150105426
5√n 57.785584642272

Divisors of 644313985

1, 5, 7, 35, 49, 245, 2629853, 13149265, 18408971, 92044855, 128862797, 644313985

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -644313984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 644313985 can be divided by 12 positive divisors. The sum of these divisors (counting 644313985) is 1, the average is 0.083333333333333.

Base conversion 644313985

Base System Value
2 Binary 100110011001110111001110000001
3 Ternary 1122220101112121221
4 Quaternary 212121313032001
5 Quinary 2304421021420
6 Senary 143533515041
8 Octal 4631671601
10 Decimal 644313985
12 Duodecimal 15b942a81
16 Hexadecimal 26677381
20 Vigesimal a16j4j5
36 Base36 anlvup

Cryptographic Hash Functions

md5 f4f69609de8092bdb9a55ea7fb2f2da1
sha1 565b09dff76c014307be7524cf98207ab06f679a
sha256 19ee92a42281f7dfe103841d3118362bdc45046ed0bbd12d0d92044d22c10989
sha512 29b6c2d9bf859a393e502437d7f294d48b56b97b3028be934bf935657a1108c7016f95f4eea46a8a5235b2b87f7b4f4d725a4f08a42a4274c476ea9c2ac9f08e
ripemd-160 e351b67b087389a6f61c96c3f9169f9e05b67dc7

644313985 as geometric shapes

Circle

Radius = n
Diameter 1288627970
Circumference 4048344163.7623
Area 1.3042023804026E+18

Sphere

Radius = n
Volume 1.1204211106182E+27
Surface area 5.2168095216104E+18
Circumference 4048344163.7623

Square

Length = n
Perimeter 2577255940
Area 415140511266580225
Diagonal 911197576.01365

Cube

Length = n
Surface area 2490843067599481350
Volume 2.6748083714911E+26
Space diagonal 1115984558.0472

Equilateral Triangle

Length = n
Perimeter 1932941955
Area 1.7976111444846E+17
Altitude 557992279.02359

Triangular Pyramid

Length = n
Surface area 1.7976111444846E+17
Volume 3.1522918964265E+25
Height 303732525.33789