638994909 (number)

638994909 is an odd 9-digits composite number following 638994908 and preceding 638994910. In scientific notation, it is written as 6.38994909 × 10^8. The sum of its digits is 57. It has a total of 5 prime factors and 32 positive divisors. There are 334640160 positive integers (up to 638994909) that are relatively prime to 638994909.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38994909 × 10^8
Engineering notation 6.38994909 × 10^6

Prime Factorization of 638994909

Prime Factorization 3 × 7 × 361 × 31 × 2719

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 638994909
Product of the distinct prime numbers

The prime factorization of 638994909 is 3 × 7 × 361 × 31 × 2719. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638994909)

Multiplication

n×y
n×2 1277989818
n×3 1916984727
n×4 2555979636
n×5 3194974545

Division

n÷y
n÷2 319497454.5
n÷3 212998303
n÷3 159748727.25
n÷5 127798981.8

Exponentiation

ny
n2 408314493727918281
n3 2.6091088276305E+26
n4 1.6672072578829E+35
n5 1.065336950035E+44

Nth Root

y√n
2√n 25278.348620905
3√n 861.32251404134
4√n 158.99166211127
5√n 57.689859280761

Divisors of 638994909

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638994908
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638994909 can be divided by 32 positive divisors. The sum of these divisors (counting 638994909) is 1, the average is 0.03125.

Base conversion 638994909

Base System Value
2 Binary 100110000101100100100111011101
3 Ternary 1122112101022020010
4 Quaternary 212011210213131
5 Quinary 2302040314114
6 Senary 143223513433
8 Octal 4605444735
10 Decimal 638994909
12 Duodecimal 159bb8879
16 Hexadecimal 261649dd
20 Vigesimal 9jde759
36 Base36 akfvml

Cryptographic Hash Functions

md5 dc733d3cba1c98f1e446cc8b8c295fa9
sha1 c2e16cbaf32846b0102c467887386c6d6db0e24d
sha256 216b9a9571907ea18c9a174132da52bddb328f813e73f264b46be118d36ddef6
sha512 881606561efd3164f264e56005bf7472a880a9c34cc4de10a82c07e8a3ae8155e1aa3129e6b830a09e7eb471baa627149f6be2d3ae07330a820886cb901711dc
ripemd-160 34cd56c1799d0152719a3233bbf5fc811332a1cf

638994909 as geometric shapes

Circle

Radius = n
Diameter 1277989818
Circumference 4014923423.5914
Area 1.2827578138499E+18

Sphere

Radius = n
Volume 1.09290095004E+27
Surface area 5.1310312553995E+18
Circumference 4014923423.5914

Square

Length = n
Perimeter 2555979636
Area 408314493727918281
Diagonal 903675266.59516

Cube

Length = n
Surface area 2449886962367509686
Volume 2.6091088276305E+26
Space diagonal 1106771648.1659

Equilateral Triangle

Length = n
Perimeter 1916984727
Area 1.7680536215088E+17
Altitude 553385824.08293

Triangular Pyramid

Length = n
Surface area 1.7680536215088E+17
Volume 3.074864241452E+25
Height 301225088.86505