638454921 (number)

638454921 is an odd 9-digits composite number following 638454920 and preceding 638454922. In scientific notation, it is written as 6.38454921 × 10^8. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 392227200 positive integers (up to 638454921) that are relatively prime to 638454921.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million four hundred fifty-four thousand nine hundred twenty-one

Notation

Scientific notation 6.38454921 × 10^8
Engineering notation 6.38454921 × 10^6

Prime Factorization of 638454921

Prime Factorization 3 × 13 × 601 × 27239

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638454921
Product of the distinct prime numbers

The prime factorization of 638454921 is 3 × 13 × 601 × 27239. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 2, 25, 93, 315, 553, 7092, 7563, 89350, 6606, 472433, 662943, 4796770, 1815509, 72036929, 38602835, 137047753, 507283630, 9654347408, 2123563043

Basic calculations (n = 638454921)

Multiplication

n×y
n×2 1276909842
n×3 1915364763
n×4 2553819684
n×5 3192274605

Division

n÷y
n÷2 319227460.5
n÷3 212818307
n÷3 159613730.25
n÷5 127690984.2

Exponentiation

ny
n2 407624686149116241
n3 2.6024998679298E+26
n4 1.6615788475817E+35
n5 1.060843191868E+44

Nth Root

y√n
2√n 25267.665523352
3√n 861.0798230642
4√n 158.95806215273
5√n 57.680105723516

Divisors of 638454921

1, 3, 13, 39, 601, 1803, 7813, 23439, 27239, 81717, 354107, 1062321, 16370639, 49111917, 212818307, 638454921

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 -638454920
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 638454921 can be divided by 16 positive divisors. The sum of these divisors (counting 638454921) is 1, the average is 0.0625.

Base conversion 638454921

Base System Value
2 Binary 100110000011100000110010001001
3 Ternary 1122111100212111120
4 Quaternary 212003200302021
5 Quinary 2301421024141
6 Senary 143204145453
8 Octal 4603406211
10 Decimal 638454921
12 Duodecimal 159998289
16 Hexadecimal 260e0c89
20 Vigesimal 9ja6h61
36 Base36 ak4ayx

Cryptographic Hash Functions

md5 6491c7d65affc7ecddabe9a59951d54f
sha1 b5813c8fd6be42a2993933046965b55e0b739daf
sha256 f4467998d01a34f48fd8064c0a24a62f3ee279611217063842e49d1fd79af6a7
sha512 ae2f27a8afef905ce6294f7324895ef5364909d906b7cbd7eb9e43a97c07f536faa0638dc43db60350300c26f156c7216f8925eec9a8361f13f9394451e4c06b
ripemd-160 1abbb86e07207a1ba926cbdfd5946a72ae13d24e

638454921 as geometric shapes

Circle

Radius = n
Diameter 1276909842
Circumference 4011530578.9237
Area 1.2805907194279E+18

Sphere

Radius = n
Volume 1.0901325954742E+27
Surface area 5.1223628777116E+18
Circumference 4011530578.9237

Square

Length = n
Perimeter 2553819684
Area 407624686149116241
Diagonal 902911608.24204

Cube

Length = n
Surface area 2445748116894697446
Volume 2.6024998679298E+26
Space diagonal 1105836361.5144

Equilateral Triangle

Length = n
Perimeter 1915364763
Area 1.765066667074E+17
Altitude 552918180.75719

Triangular Pyramid

Length = n
Surface area 1.765066667074E+17
Volume 3.0670755077505E+25
Height 300970536.08068