638691609 (number)

638691609 is an odd 9-digits composite number following 638691608 and preceding 638691610. In scientific notation, it is written as 6.38691609 × 10^8. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 425794404 positive integers (up to 638691609) that are relatively prime to 638691609.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred ninety-one thousand six hundred nine

Notation

Scientific notation 6.38691609 × 10^8
Engineering notation 6.38691609 × 10^6

Prime Factorization of 638691609

Prime Factorization 3 × 212897203

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638691609
Product of the distinct prime numbers

The prime factorization of 638691609 is 3 × 212897203. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 1, 41, 81, 943, 550, 8450, 2668, 69672, 82519, 354985, 765374, 8315580, 5703700, 83071492, 89052489, 866759277, 261038518, 92362172, 9398340237

Basic calculations (n = 638691609)

Multiplication

n×y
n×2 1277383218
n×3 1916074827
n×4 2554766436
n×5 3193458045

Division

n÷y
n÷2 319345804.5
n÷3 212897203
n÷3 159672902.25
n÷5 127738321.8

Exponentiation

ny
n2 407926971407008881
n3 2.6053953372244E+26
n4 1.6640441400129E+35
n5 1.0628110292319E+44

Nth Root

y√n
2√n 25272.348703672
3√n 861.18621641817
4√n 158.97279233778
5√n 57.684381723092

Divisors of 638691609

1, 3, 212897203, 638691609

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 -638691608
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 638691609 can be divided by 4 positive divisors. The sum of these divisors (counting 638691609) is 1, the average is 0.25.

Base conversion 638691609

Base System Value
2 Binary 100110000100011010100100011001
3 Ternary 1122111210220011210
4 Quaternary 212010122210121
5 Quinary 2302001112414
6 Senary 143213213333
8 Octal 4604324431
10 Decimal 638691609
12 Duodecimal 159a91249
16 Hexadecimal 2611a919
20 Vigesimal 9jbg909
36 Base36 ak9dll

Cryptographic Hash Functions

md5 6cbbaa2797038b27210072ac0069639e
sha1 72354b12067b1e0c92803bdd84f4f78515de9a63
sha256 3f68a00c673a8c5385259277f769da762758d1b89bf1da8cf8428c8ddd57b084
sha512 80b8eb015e7af4cc236cd254e706c217764ad2f6424e3840a10f5ba5e4938342a90c81aaf5fdfb74bd5b0d64f8084ca6bcc179a492029d328b2defe74518b6e7
ripemd-160 9b1513abf0147acdf508255e1e5f4645b767c3da

638691609 as geometric shapes

Circle

Radius = n
Diameter 1277383218
Circumference 4013017733.4877
Area 1.2815403765734E+18

Sphere

Radius = n
Volume 1.0913454468162E+27
Surface area 5.1261615062936E+18
Circumference 4013017733.4877

Square

Length = n
Perimeter 2554766436
Area 407926971407008881
Diagonal 903246335.62169

Cube

Length = n
Surface area 2447561828442053286
Volume 2.6053953372244E+26
Space diagonal 1106246317.1559

Equilateral Triangle

Length = n
Perimeter 1916074827
Area 1.7663756006366E+17
Altitude 553123158.57796

Triangular Pyramid

Length = n
Surface area 1.7663756006366E+17
Volume 3.0704878510386E+25
Height 301082111.8739