638985 (number)

638985 is an odd 6-digits composite number following 638984 and preceding 638986. In scientific notation, it is written as 6.38985 × 10^5. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 332160 positive integers (up to 638985) that are relatively prime to 638985.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight thousand nine hundred eighty-five

Notation

Scientific notation 6.38985 × 10^5
Engineering notation 6.38985 × 10^3

Prime Factorization of 638985

Prime Factorization 3 × 5 × 41 × 1039

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638985
Product of the distinct prime numbers

The prime factorization of 638985 is 3 × 5 × 41 × 1039. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 51, 33, 933, 150, 8756, 9501, 27766, 16888, 532653, 78005, 6637700, 8204289, 97268322, 80844312, 295700066, 144278119, 6307533115, 8447008031

Basic calculations (n = 638985)

Multiplication

n×y
n×2 1277970
n×3 1916955
n×4 2555940
n×5 3194925

Division

n÷y
n÷2 319492.5
n÷3 212995
n÷3 159746.25
n÷5 127797

Exponentiation

ny
n2 408301830225
n3 260898744986321625
n4 1.6671038456508E+23
n5 1.0652543508132E+29

Nth Root

y√n
2√n 799.36537328058
3√n 86.131806179465
4√n 28.273050300252
5√n 14.490992533041

Divisors of 638985

1, 3, 5, 15, 41, 123, 205, 615, 1039, 3117, 5195, 15585, 42599, 127797, 212995, 638985

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638985 can be divided by 16 positive divisors. The sum of these divisors (counting 638985) is 1, the average is 0.0625.

Base conversion 638985

Base System Value
2 Binary 10011100000000001001
3 Ternary 1012110112010
4 Quaternary 2130000021
5 Quinary 130421420
6 Senary 21410133
8 Octal 2340011
10 Decimal 638985
12 Duodecimal 269949
16 Hexadecimal 9c009
20 Vigesimal 3jh95
36 Base36 dp1l

Cryptographic Hash Functions

md5 647e0f430068af948ce34e786b905287
sha1 b62ec432da1d3d6e2fd9e150bac0b2008ad9ef52
sha256 d13683ca40de1a756d38330735326e04a1a1169160d1f019848e5a814b4f3774
sha512 ec78944afbb6b2395ee49f048bdc0429126dea3aa5abd9108f333ba19985306f327799f79dee08980abf151994738f6c5f1f81ba12197938951d1d9cefbd527c
ripemd-160 8a6d6b616354570a4bcfbed6e45c97ecf9ba8cda

638985 as geometric shapes

Circle

Radius = n
Diameter 1277970
Circumference 4014861.1635081
Area 1282718030282.1

Sphere

Radius = n
Volume 1.0928501074398E+18
Surface area 5130872121128.5
Circumference 4014861.1635081

Square

Length = n
Perimeter 2555940
Area 408301830225
Diagonal 903661.25315297

Cube

Length = n
Surface area 2449810981350
Volume 260898744986321625
Space diagonal 1106754.4852744

Equilateral Triangle

Length = n
Perimeter 1916955
Area 176799878693.27
Altitude 553377.2426372

Triangular Pyramid

Length = n
Surface area 176799878693.27
Volume 3.0747211963815E+16
Height 301220.41771766