638778865 (number)

638778865 is an odd 9-digits composite number following 638778864 and preceding 638778866. In scientific notation, it is written as 6.38778865 × 10^8. The sum of its digits is 58. It has a total of 3 prime factors and 8 positive divisors. There are 508199040 positive integers (up to 638778865) that are relatively prime to 638778865.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million seven hundred seventy-eight thousand eight hundred sixty-five

Notation

Scientific notation 6.38778865 × 10^8
Engineering notation 6.38778865 × 10^6

Prime Factorization of 638778865

Prime Factorization 5 × 181 × 705833

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638778865
Product of the distinct prime numbers

The prime factorization of 638778865 is 5 × 181 × 705833. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 1, 39, 3, 149, 23, 825, 7211, 13937, 44340, 858378, 403518, 9605899, 7298095, 30558614, 28306788, 342920018, 950521273, 503435316, 7919857038

Basic calculations (n = 638778865)

Multiplication

n×y
n×2 1277557730
n×3 1916336595
n×4 2555115460
n×5 3193894325

Division

n÷y
n÷2 319389432.5
n÷3 212926288.33333
n÷3 159694716.25
n÷5 127755773

Exponentiation

ny
n2 408038438370688225
n3 2.606463305388E+26
n4 1.6649536718799E+35
n5 1.063537216801E+44

Nth Root

y√n
2√n 25274.074958344
3√n 861.22543213237
4√n 158.97822164795
5√n 57.685957768028

Divisors of 638778865

1, 5, 181, 905, 705833, 3529165, 127755773, 638778865

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 -638778864
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 638778865 can be divided by 8 positive divisors. The sum of these divisors (counting 638778865) is 1, the average is 0.125.

Base conversion 638778865

Base System Value
2 Binary 100110000100101111110111110001
3 Ternary 1122111222022212111
4 Quaternary 212010233313301
5 Quinary 2302011410430
6 Senary 143215125321
8 Octal 4604576761
10 Decimal 638778865
12 Duodecimal 159b13841
16 Hexadecimal 2612fdf1
20 Vigesimal 9jc7735
36 Base36 akb8xd

Cryptographic Hash Functions

md5 de7f11429d5352797db35f4e4be01b9f
sha1 ab036733f1c368bb1c35143afb63acf39e331387
sha256 aa4023ab1cfc51b75677ee2825b0f54be61627c2dc0f734932f4e0383c82c9b5
sha512 9f61275150e0c0a0a538b878a8a992dc11dbb1ffe8270c8190671d6a440be6da4c62119e1f250a778106a497a7a731aa65061f39d4ade3b51d4f54a0b1e061e0
ripemd-160 0ddeb5c43efeb95814ef99b1492598dc6d28deee

638778865 as geometric shapes

Circle

Radius = n
Diameter 1277557730
Circumference 4013565979.1049
Area 1.2818905603676E+18

Sphere

Radius = n
Volume 1.0917927962744E+27
Surface area 5.1275622414704E+18
Circumference 4013565979.1049

Square

Length = n
Perimeter 2555115460
Area 408038438370688225
Diagonal 903369734.24029

Cube

Length = n
Surface area 2448230630224129350
Volume 2.606463305388E+26
Space diagonal 1106397448.9812

Equilateral Triangle

Length = n
Perimeter 1916336595
Area 1.7668582667477E+17
Altitude 553198724.49059

Triangular Pyramid

Length = n
Surface area 1.7668582667477E+17
Volume 3.0717464635896E+25
Height 301123244.74676