638966421 (number)

638966421 is an odd 9-digits composite number following 638966420 and preceding 638966422. In scientific notation, it is written as 6.38966421 × 10^8. The sum of its digits is 45. It has a total of 5 prime factors and 16 positive divisors. There are 425616624 positive integers (up to 638966421) that are relatively prime to 638966421.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38966421 × 10^8
Engineering notation 6.38966421 × 10^6

Prime Factorization of 638966421

Prime Factorization 3 × 3 × 3 × 1259 × 18797

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 70996269
Product of the distinct prime numbers

The prime factorization of 638966421 is 3 × 3 × 3 × 1259 × 18797. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 6, 68, 8, 140, 238, 6627, 9883, 81429, 94748, 812087, 180440, 9286048, 993415, 57141035, 25447670, 195507780, 759166845, 7831066730, 1969661906

Basic calculations (n = 638966421)

Multiplication

n×y
n×2 1277932842
n×3 1916899263
n×4 2555865684
n×5 3194832105

Division

n÷y
n÷2 319483210.5
n÷3 212988807
n÷3 159741605.25
n÷5 127793284.2

Exponentiation

ny
n2 408278087165549241
n3 2.608759881289E+26
n4 1.6669099645956E+35
n5 1.0650994942069E+44

Nth Root

y√n
2√n 25277.785128448
3√n 861.30971387653
4√n 158.98989001961
5√n 57.689344879787

Divisors of 638966421

1, 3, 9, 27, 1259, 3777, 11331, 18797, 33993, 56391, 169173, 507519, 23665423, 70996269, 212988807, 638966421

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 -638966420
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 638966421 can be divided by 16 positive divisors. The sum of these divisors (counting 638966421) is 1, the average is 0.0625.

Base conversion 638966421

Base System Value
2 Binary 100110000101011101101010010101
3 Ternary 1122112022212011000
4 Quaternary 212011131222111
5 Quinary 2302033411141
6 Senary 143223133513
8 Octal 4605355225
10 Decimal 638966421
12 Duodecimal 159ba4299
16 Hexadecimal 2615da95
20 Vigesimal 9jdag11
36 Base36 akf9n9

Cryptographic Hash Functions

md5 1d670e948800607bc60532a45fd56dfc
sha1 4570dff8f9e22eb1552ff51bf30c4319e43b4e16
sha256 47b5906aa4daa8d4ed3c90054ec8d5d7b3fc0d62648224cd0af63a457a769ae4
sha512 a9fb2e4dddaac30b4850114035aed77cfcd625c2d6b1013caff85d00a879b2ed207bdfa48266cc493ba771776febbfceb6bd9206fd914eb9ae06c79c5793bf00
ripemd-160 923a9d306e2f66a9f3015aca5cf332a38d0acd47

638966421 as geometric shapes

Circle

Radius = n
Diameter 1277932842
Circumference 4014744428.2083
Area 1.282643439261E+18

Sphere

Radius = n
Volume 1.0927547837383E+27
Surface area 5.1305737570439E+18
Circumference 4014744428.2083

Square

Length = n
Perimeter 2555865684
Area 408278087165549241
Diagonal 903634978.4792

Cube

Length = n
Surface area 2449668522993295446
Volume 2.608759881289E+26
Space diagonal 1106722305.5024

Equilateral Triangle

Length = n
Perimeter 1916899263
Area 1.7678959764694E+17
Altitude 553361152.75122

Triangular Pyramid

Length = n
Surface area 1.7678959764694E+17
Volume 3.0744530042447E+25
Height 301211659.49307