721875 (number)
721875 is an odd 6-digits composite number following 721874 and preceding 721876. In scientific notation, it is written as 7.21875 × 10^5. The sum of its digits is 30. It has a total of 7 prime factors and 40 positive divisors. There are 300000 positive integers (up to 721875) that are relatively prime to 721875.
Interesting facts
- 721875 has 40 divisors, whose sum is 1199616
- The reverse of 721875 is 578127
- Previous prime number is 5
Basic properties
- Is Prime? no
- Number parity odd
- Number length 6
- Sum of Digits 30
- Digital Root 3
Name
| Name | seven hundred twenty-one thousand eight hundred seventy-five |
|---|
Notation
| Scientific notation | 7.21875 × 10^5 |
|---|---|
| Engineering notation | 7.21875 × 10^3 |
Prime Factorization of 721875
Prime Factorization 15 × 7 × 5 × 11 × 5 × 5 × 5
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 5775 | Product of the distinct prime numbers |
The prime factorization of 721875 is 15 × 7 × 5 × 11 × 5 × 5 × 5. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 721875)
Multiplication
n×y| n×2 | 1443750 |
|---|---|
| n×3 | 2165625 |
| n×4 | 2887500 |
| n×5 | 3609375 |
Division
n÷y| n÷2 | 360937.5 |
|---|---|
| n÷3 | 240625 |
| n÷3 | 180468.75 |
| n÷5 | 144375 |
Exponentiation
ny| n2 | 521103515625 |
|---|---|
| n3 | 376171600341796875 |
| n4 | 2.7154887399673E+23 |
| n5 | 1.9602434341639E+29 |
Nth Root
y√n| 2√n | 849.63227339832 |
|---|---|
| 3√n | 89.70582965782 |
| 4√n | 29.148452332814 |
| 5√n | 14.848835646602 |
Divisors of 721875
40 divisors
| τ | Total Divisors | 40 | Total number of the positive divisors of n |
|---|---|---|---|
| σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
| s | Aliquot Sum | -721874 | Sum of the proper positive divisors of n |
| A | Arithmetic Mean | 0.025 | 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 | 40 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 721875 can be divided by 40 positive divisors. The sum of these divisors (counting 721875) is 1, the average is 0.025.
Base conversion 721875
| Base | System | Value |
|---|---|---|
| 2 | Binary | 10110000001111010011 |
| 3 | Ternary | 1100200020010 |
| 4 | Quaternary | 2300033103 |
| 5 | Quinary | 141100000 |
| 6 | Senary | 23250003 |
| 8 | Octal | 2601723 |
| 10 | Decimal | 721875 |
| 12 | Duodecimal | 2a9903 |
| 16 | Hexadecimal | b03d3 |
| 20 | Vigesimal | 4a4df |
| 36 | Base36 | fh03 |
Cryptographic Hash Functions
| md5 | c0e9757cadcb945aaab397799fbcd714 |
|---|---|
| sha1 | fd9b6c35ddf09d84748181b05baeaeb55fc40f02 |
| sha256 | 5adf961e01e084ae0f2608a7565329f343ce8d1b2d5b2291dd04d227101034b6 |
| sha512 | 9cfa5737f3fe0d5f15acb1c2b4e9c6ec6b8953936d85f6f2ebf9579ceb36d3a225c3fc6d687dff735d15db84cc3dec5403123fae93fc3ae5b38b921bb7624d48 |
| ripemd-160 | 13a202fd510decdbfe8dee68a8914238c787327b |
721875 as geometric shapes
Circle
Radius = n| Diameter | 1443750 |
|---|---|
| Circumference | 4535674.3936203 |
| Area | 1637094976447.3 |
Sphere
Radius = n| Volume | 1.5757039148305E+18 |
|---|---|
| Surface area | 6548379905789.3 |
| Circumference | 4535674.3936203 |
Square
Length = n| Perimeter | 2887500 |
|---|---|
| Area | 521103515625 |
| Diagonal | 1020885.4153381 |
Cube
Length = n| Surface area | 3126621093750 |
|---|---|
| Volume | 376171600341796875 |
| Space diagonal | 1250324.1767138 |
Equilateral Triangle
Length = n| Perimeter | 2165625 |
|---|---|
| Area | 225644441266.32 |
| Altitude | 625162.08835689 |
Triangular Pyramid
Length = n| Surface area | 225644441266.32 |
|---|---|
| Volume | 4.433224824858E+16 |
| Height | 340295.13844603 |