638406938 (number)

638406938 is an even 9-digits composite number following 638406937 and preceding 638406939. In scientific notation, it is written as 6.38406938 × 10^8. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 294206016 positive integers (up to 638406938) that are relatively prime to 638406938.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38406938 × 10^8
Engineering notation 6.38406938 × 10^6

Prime Factorization of 638406938

Prime Factorization 2 × 13 × 677 × 36269

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638406938
Product of the distinct prime numbers

The prime factorization of 638406938 is 2 × 13 × 677 × 36269. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 45, 50, 418, 360, 9387, 1039, 8207, 82159, 678107, 915611, 1768868, 5736864, 28086188, 9644451, 37966270, 585292743, 6039893301, 4437634460

Basic calculations (n = 638406938)

Multiplication

n×y
n×2 1276813876
n×3 1915220814
n×4 2553627752
n×5 3192034690

Division

n÷y
n÷2 319203469
n÷3 212802312.66667
n÷3 159601734.5
n÷5 127681387.6

Exponentiation

ny
n2 407563418486535844
n3 2.601913140368E+26
n4 1.6610794008843E+35
n5 1.0604446140934E+44

Nth Root

y√n
2√n 25266.716011385
3√n 861.05825107486
4√n 158.95507545022
5√n 57.67923870922

Divisors of 638406938

1, 2, 13, 26, 677, 1354, 8801, 17602, 36269, 72538, 471497, 942994, 24554113, 49108226, 319203469, 638406938

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 -638406937
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 638406938 can be divided by 16 positive divisors. The sum of these divisors (counting 638406938) is 1, the average is 0.0625.

Base conversion 638406938

Base System Value
2 Binary 100110000011010101000100011010
3 Ternary 1122111021102200102
4 Quaternary 212003111010122
5 Quinary 2301413010223
6 Senary 143203135402
8 Octal 4603250432
10 Decimal 638406938
12 Duodecimal 159974562
16 Hexadecimal 260d511a
20 Vigesimal 9ja0h6i
36 Base36 ak39y2

Cryptographic Hash Functions

md5 bd60ee4f09defd5f219e82f9e207bce6
sha1 97f835b98877cfe30d5e18047502a16bc9456e09
sha256 bac973a4b4103ebe6ded5166b10648b8143329c3bbf737fa21da195c6fa1a9fe
sha512 182619af0893f87e704bef993c2be22366f4d4455badf116840b12909e2f8f4a382a713393152ede50c19dfa49983bfcbb326ec52180f8693389c40c0347c92b
ripemd-160 d6449f5eb91b02d440d80732c3eb8a33e0ad5e62

638406938 as geometric shapes

Circle

Radius = n
Diameter 1276813876
Circumference 4011229092.8431
Area 1.2803982413892E+18

Sphere

Radius = n
Volume 1.0898868276079E+27
Surface area 5.121592965557E+18
Circumference 4011229092.8431

Square

Length = n
Perimeter 2553627752
Area 407563418486535844
Diagonal 902843750.03268

Cube

Length = n
Surface area 2445380510919215064
Volume 2.601913140368E+26
Space diagonal 1105753252.5205

Equilateral Triangle

Length = n
Perimeter 1915220814
Area 1.7648013703128E+17
Altitude 552876626.26024

Triangular Pyramid

Length = n
Surface area 1.7648013703128E+17
Volume 3.0663840426877E+25
Height 300947916.67756