644865216 (number)

644865216 is an even 9-digits composite number following 644865215 and preceding 644865217. In scientific notation, it is written as 6.44865216 × 10^8. The sum of its digits is 42. It has a total of 9 prime factors and 56 positive divisors. There are 202309632 positive integers (up to 644865216) that are relatively prime to 644865216.

Interesting facts

Basic properties

Name

Name six hundred forty-four million eight hundred sixty-five thousand two hundred sixteen

Notation

Scientific notation 6.44865216 × 10^8
Engineering notation 6.44865216 × 10^6

Prime Factorization of 644865216

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 17 × 3 × 197569

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 20152038
Product of the distinct prime numbers

The prime factorization of 644865216 is 2 × 2 × 2 × 2 × 2 × 2 × 17 × 3 × 197569. Since it has a total of 9 prime factors.

Most popular turbo-numbers

5, 2, 74, 10, 678, 128, 8556, 2516, 36682, 89716, 920803, 422989, 9185617, 5592915, 87368114, 57486393, 501893476, 409662336, 780243652, 850467597

Basic calculations (n = 644865216)

Multiplication

n×y
n×2 1289730432
n×3 1934595648
n×4 2579460864
n×5 3224326080

Division

n÷y
n÷2 322432608
n÷3 214955072
n÷3 161216304
n÷5 128973043.2

Exponentiation

ny
n2 415851146806726656
n3 2.6816793960937E+26
n4 1.7293217630047E+35
n5 1.1151794522335E+44

Nth Root

y√n
2√n 25394.196502351
3√n 863.95207210133
4√n 159.35556627351
5√n 57.795468739582

Divisors of 644865216

1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 64, 68, 96, 102, 136, 192, 204, 272, 408, 544, 816, 1088, 1632, 3264, 197569, 395138, 592707, 790276, 1185414, 1580552, 2370828, 3161104, 3358673, 4741656, 6322208, 6717346, 9483312, 10076019, 12644416, 13434692, 18966624, 20152038, 26869384, 37933248, 40304076, 53738768, 80608152, 107477536, 161216304, 214955072, 322432608, 644865216

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -644865215
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 644865216 can be divided by 56 positive divisors. The sum of these divisors (counting 644865216) is 1, the average is 0.017857142857143.

Base conversion 644865216

Base System Value
2 Binary 100110011011111101110011000000
3 Ternary 1122221102112202220
4 Quaternary 212123331303000
5 Quinary 2310041141331
6 Senary 143553411040
8 Octal 4633756300
10 Decimal 644865216
12 Duodecimal 15bb69a80
16 Hexadecimal 266fdcc0
20 Vigesimal a1a830g
36 Base36 anxp6o

Cryptographic Hash Functions

md5 e0037fc880945b0133fbad603ea927d3
sha1 54d5b35b1aa3969d25fd7448116a8e6f4cfb85bc
sha256 80de3e7c5dee98b7a6a8e63df9a61da4cd11585968799af47932fe26b670e13a
sha512 83e852561972a9d8903520e2d66300549b9e66900e9047c9b56e33e7fba45ff25276d6588c86dbb5f70cc89779ab9dc043b17881cff5e98dc0828fff9982cf06
ripemd-160 3b19bb576de1ebe1b28d9a0d961b6a4b8d11b58e

644865216 as geometric shapes

Circle

Radius = n
Diameter 1289730432
Circumference 4051807650.2824
Area 1.3064349077949E+18

Sphere

Radius = n
Volume 1.1232992386735E+27
Surface area 5.2257396311796E+18
Circumference 4051807650.2824

Square

Length = n
Perimeter 2579460864
Area 415851146806726656
Diagonal 911977134.36986

Cube

Length = n
Surface area 2495106880840359936
Volume 2.6816793960937E+26
Space diagonal 1116939318.1459

Equilateral Triangle

Length = n
Perimeter 1934595648
Area 1.8006882866376E+17
Altitude 558469659.07294

Triangular Pyramid

Length = n
Surface area 1.8006882866376E+17
Volume 3.1603894765768E+25
Height 303992378.12329