638998421 (number)

638998421 is an odd 9-digits prime number following 638998420 and preceding 638998422. In scientific notation, it is written as 6.38998421 × 10^8. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 638998420 positive integers (up to 638998421) that are relatively prime to 638998421.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38998421 × 10^8
Engineering notation 6.38998421 × 10^6

Prime Factorization of 638998421

Prime Factorization 638998421

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 638998421
Product of the distinct prime numbers

The prime factorization of 638998421 is 638998421. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 5, 98, 95, 601, 231, 4673, 3035, 12049, 91940, 142314, 638903, 8672634, 5445132, 26150339, 17153509, 9519219, 199086073, 2758069896, 5279141782

Basic calculations (n = 638998421)

Multiplication

n×y
n×2 1277996842
n×3 1916995263
n×4 2555993684
n×5 3194992105

Division

n÷y
n÷2 319499210.5
n÷3 212999473.66667
n÷3 159749605.25
n÷5 127799684.2

Exponentiation

ny
n2 408318982040493241
n3 2.609151847882E+26
n4 1.6672439109458E+35
n5 1.0653662265163E+44

Nth Root

y√n
2√n 25278.418087372
3√n 861.32409201903
4√n 158.99188057059
5√n 57.689922694832

Divisors of 638998421

1, 638998421

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 638998422
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 319499211
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 25278.418107152
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999968701
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638998421 can be divided by 2 positive divisors. The sum of these divisors (counting 638998421) is 638998422, the average is 319499211.

Base conversion 638998421

Base System Value
2 Binary 100110000101100101011110010101
3 Ternary 1122112101111001012
4 Quaternary 212011211132111
5 Quinary 2302040422141
6 Senary 143223542005
8 Octal 4605453625
10 Decimal 638998421
12 Duodecimal 159bba905
16 Hexadecimal 26165795
20 Vigesimal 9jdeg11
36 Base36 akfyc5

Cryptographic Hash Functions

md5 f273e1657e4752c010bd6fbbadc468a2
sha1 87645701974e03f28cf695407f35f148e012794f
sha256 60787b68374fa87b66b6ab448c71177048b3bd1f36f2d0b64e8fa72e4dea2609
sha512 4fbf944d7ee083ee087661f64537674ffb722983996f3c0c2a72289ea2985b52b326770e5b36eeea7de825324d6318c18d31a43d89cbc043643ebc291de0ae7f
ripemd-160 fe02d2da722febe62e8914e36e3a1c102af45d26

638998421 as geometric shapes

Circle

Radius = n
Diameter 1277996842
Circumference 4014945490.1382
Area 1.2827719142997E+18

Sphere

Radius = n
Volume 1.0929189703209E+27
Surface area 5.1310876571987E+18
Circumference 4014945490.1382

Square

Length = n
Perimeter 2555993684
Area 408318982040493241
Diagonal 903680233.31319

Cube

Length = n
Surface area 2449913892242959446
Volume 2.609151847882E+26
Space diagonal 1106777731.1283

Equilateral Triangle

Length = n
Perimeter 1916995263
Area 1.7680730564723E+17
Altitude 553388865.56414

Triangular Pyramid

Length = n
Surface area 1.7680730564723E+17
Volume 3.0749149413047E+25
Height 301226744.43773