638684906 (number)

638684906 is an even 9-digits composite number following 638684905 and preceding 638684907. In scientific notation, it is written as 6.38684906 × 10^8. The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors. There are 319342452 positive integers (up to 638684906) that are relatively prime to 638684906.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred eighty-four thousand nine hundred six

Notation

Scientific notation 6.38684906 × 10^8
Engineering notation 6.38684906 × 10^6

Prime Factorization of 638684906

Prime Factorization 2 × 319342453

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638684906
Product of the distinct prime numbers

The prime factorization of 638684906 is 2 × 319342453. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 6, 88, 13, 831, 577, 2409, 5251, 91376, 16012, 330429, 790074, 1874468, 2228859, 5246377, 69713968, 183334926, 870537606, 3033309783, 4541427814

Basic calculations (n = 638684906)

Multiplication

n×y
n×2 1277369812
n×3 1916054718
n×4 2554739624
n×5 3193424530

Division

n÷y
n÷2 319342453
n÷3 212894968.66667
n÷3 159671226.5
n÷5 127736981.2

Exponentiation

ny
n2 407918409152228836
n3 2.6053133080506E+26
n4 1.6639742852529E+35
n5 1.0627552599631E+44

Nth Root

y√n
2√n 25272.216088028
3√n 861.18320372194
4√n 158.97237523554
5√n 57.684260644303

Divisors of 638684906

1, 2, 319342453, 638684906

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 -638684905
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 638684906 can be divided by 4 positive divisors. The sum of these divisors (counting 638684906) is 1, the average is 0.25.

Base conversion 638684906

Base System Value
2 Binary 100110000100011000111011101010
3 Ternary 1122111210112222112
4 Quaternary 212010120323222
5 Quinary 2302000404111
6 Senary 143213122322
8 Octal 4604307352
10 Decimal 638684906
12 Duodecimal 159a893a2
16 Hexadecimal 26118eea
20 Vigesimal 9jbfc56
36 Base36 ak98fe

Cryptographic Hash Functions

md5 464090346693f1d8d8afd730e7453513
sha1 fc9ac5a3832afeb965109473dc72cb6455001c09
sha256 66eab53345a0c4f91ccaad093fcfe707a18ae70557ff18b88451f2cea103e383
sha512 8f3409472e731f13f5e483cb0aa17900c0acbc9c5499c49550e18e7fa818e2f5997d0ab03abac8bbb42cb2fb8381c7c29c715eb3b97ff8c7c9d83ddb49ce90af
ripemd-160 d928aa5f020326ab8082481b80b700d08868823e

638684906 as geometric shapes

Circle

Radius = n
Diameter 1277369812
Circumference 4012975617.2966
Area 1.2815134774567E+18

Sphere

Radius = n
Volume 1.0913110865162E+27
Surface area 5.1260539098267E+18
Circumference 4012975617.2966

Square

Length = n
Perimeter 2554739624
Area 407918409152228836
Diagonal 903236856.14819

Cube

Length = n
Surface area 2447510454913373016
Volume 2.6053133080506E+26
Space diagonal 1106234707.2194

Equilateral Triangle

Length = n
Perimeter 1916054718
Area 1.7663385249858E+17
Altitude 553117353.60968

Triangular Pyramid

Length = n
Surface area 1.7663385249858E+17
Volume 3.0703911787302E+25
Height 301078952.0494