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
- 638994909 has 32 divisors, whose sum is 1008271360
- The reverse of 638994909 is 909499836
- Previous prime number is 31
Basic properties
- Is Prime? no
- Number parity odd
- Number length 9
- Sum of Digits 57
- Digital Root 3
Name
Name | six hundred thirty-eight million nine hundred ninety-four thousand nine hundred nine |
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Notation
Scientific notation | 6.38994909 × 10^8 |
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Engineering notation | 6.38994909 × 10^6 |
Prime Factorization of 638994909
Prime Factorization 3 × 7 × 361 × 31 × 2719
Composite numberω | 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×yn×2 | 1277989818 |
---|---|
n×3 | 1916984727 |
n×4 | 2555979636 |
n×5 | 3194974545 |
Division
n÷yn÷2 | 319497454.5 |
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n÷3 | 212998303 |
n÷3 | 159748727.25 |
n÷5 | 127798981.8 |
Exponentiation
nyn2 | 408314493727918281 |
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n3 | 2.6091088276305E+26 |
n4 | 1.6672072578829E+35 |
n5 | 1.065336950035E+44 |
Nth Root
y√n2√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 = nDiameter | 1277989818 |
---|---|
Circumference | 4014923423.5914 |
Area | 1.2827578138499E+18 |
Sphere
Radius = nVolume | 1.09290095004E+27 |
---|---|
Surface area | 5.1310312553995E+18 |
Circumference | 4014923423.5914 |
Square
Length = nPerimeter | 2555979636 |
---|---|
Area | 408314493727918281 |
Diagonal | 903675266.59516 |
Cube
Length = nSurface area | 2449886962367509686 |
---|---|
Volume | 2.6091088276305E+26 |
Space diagonal | 1106771648.1659 |
Equilateral Triangle
Length = nPerimeter | 1916984727 |
---|---|
Area | 1.7680536215088E+17 |
Altitude | 553385824.08293 |
Triangular Pyramid
Length = nSurface area | 1.7680536215088E+17 |
---|---|
Volume | 3.074864241452E+25 |
Height | 301225088.86505 |