638454920 (number)

638454920 is an even 9-digits composite number following 638454919 and preceding 638454921. In scientific notation, it is written as 6.38454920 × 10^8. The sum of its digits is 41. It has a total of 7 prime factors and 64 positive divisors. There are 246355200 positive integers (up to 638454920) that are relatively prime to 638454920.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38454920 × 10^8
Engineering notation 6.38454920 × 10^6

Prime Factorization of 638454920

Prime Factorization 2 × 2 × 2 × 5 × 31 × 421 × 1223

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 159613730
Product of the distinct prime numbers

The prime factorization of 638454920 is 2 × 2 × 2 × 5 × 31 × 421 × 1223. Since it has a total of 7 prime factors.

Most popular turbo-numbers

8, 5, 7, 11, 257, 567, 9388, 1064, 78291, 90566, 288771, 576844, 156798, 7260437, 81337005, 30226367, 165115343, 902902545, 1021387429, 6667455603

Basic calculations (n = 638454920)

Multiplication

n×y
n×2 1276909840
n×3 1915364760
n×4 2553819680
n×5 3192274600

Division

n÷y
n÷2 319227460
n÷3 212818306.66667
n÷3 159613730
n÷5 127690984

Exponentiation

ny
n2 407624684872206400
n3 2.6024998557011E+26
n4 1.6615788371717E+35
n5 1.0608431835601E+44

Nth Root

y√n
2√n 25267.665503564
3√n 861.07982261464
4√n 158.95806209049
5√n 57.680105705447

Divisors of 638454920

1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 421, 620, 842, 1223, 1240, 1684, 2105, 2446, 3368, 4210, 4892, 6115, 8420, 9784, 12230, 13051, 16840, 24460, 26102, 37913, 48920, 52204, 65255, 75826, 104408, 130510, 151652, 189565, 261020, 303304, 379130, 514883, 522040, 758260, 1029766, 1516520, 2059532, 2574415, 4119064, 5148830, 10297660, 15961373, 20595320, 31922746, 63845492, 79806865, 127690984, 159613730, 319227460, 638454920

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638454919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638454920 can be divided by 64 positive divisors. The sum of these divisors (counting 638454920) is 1, the average is 0.015625.

Base conversion 638454920

Base System Value
2 Binary 100110000011100000110010001000
3 Ternary 1122111100212111112
4 Quaternary 212003200302020
5 Quinary 2301421024140
6 Senary 143204145452
8 Octal 4603406210
10 Decimal 638454920
12 Duodecimal 159998288
16 Hexadecimal 260e0c88
20 Vigesimal 9ja6h60
36 Base36 ak4ayw

Cryptographic Hash Functions

md5 fb4e1a473193948c8d3a7df503d32a88
sha1 72c1e64764e23d20fde03116f689e670b6fdebe5
sha256 1b70398950fa23a9da2be491f3e2bf52355e32632ca02ceb28ad9a9aa8e12bda
sha512 bc2268d835d56bc3f020d649e99a0ec2759fae602b60a8fa70bb3157c5c0432bdd565cbbd6bcdc64c7598abf48a0dc8c4dc3c679eae968233540b3c847d7037c
ripemd-160 d8a11d49dbeb0b12866b78def2536bcbed8e1bbb

638454920 as geometric shapes

Circle

Radius = n
Diameter 1276909840
Circumference 4011530572.6405
Area 1.2805907154164E+18

Sphere

Radius = n
Volume 1.0901325903519E+27
Surface area 5.1223628616655E+18
Circumference 4011530572.6405

Square

Length = n
Perimeter 2553819680
Area 407624684872206400
Diagonal 902911606.82783

Cube

Length = n
Surface area 2445748109233238400
Volume 2.6024998557011E+26
Space diagonal 1105836359.7823

Equilateral Triangle

Length = n
Perimeter 1915364760
Area 1.7650666615448E+17
Altitude 552918179.89116

Triangular Pyramid

Length = n
Surface area 1.7650666615448E+17
Volume 3.0670754933388E+25
Height 300970535.60928