138840 (number)
138840 is an even 6-digits composite number following 138839 and preceding 138841. In scientific notation, it is written as 1.38840 × 10^5. The sum of its digits is 24. It has a total of 7 prime factors and 64 positive divisors. There are 33792 positive integers (up to 138840) that are relatively prime to 138840.
Interesting facts
- 138840 has 64 divisors, whose sum is 453600
- The reverse of 138840 is 048831
- Previous prime number is 13
Basic properties
- Is Prime? no
- Number parity even
- Number length 6
- Sum of Digits 24
- Digital Root 6
Name
Name | one hundred thirty-eight thousand eight hundred forty |
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Notation
Scientific notation | 1.38840 × 10^5 |
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Engineering notation | 1.38840 × 10^3 |
Prime Factorization of 138840
Prime Factorization 2 × 2 × 2 × 3 × 5 × 13 × 89
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 34710 | Product of the distinct prime numbers |
The prime factorization of 138840 is 2 × 2 × 2 × 3 × 5 × 13 × 89. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 138840)
Multiplication
n×yn×2 | 277680 |
---|---|
n×3 | 416520 |
n×4 | 555360 |
n×5 | 694200 |
Division
n÷yn÷2 | 69420 |
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n÷3 | 46280 |
n÷3 | 34710 |
n÷5 | 27768 |
Exponentiation
nyn2 | 19276545600 |
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n3 | 2676355591104000 |
n4 | 3.7158521026888E+20 |
n5 | 5.1590890593731E+25 |
Nth Root
y√n2√n | 372.61239914957 |
---|---|
3√n | 51.781131353675 |
4√n | 19.303170701975 |
5√n | 10.678319745935 |
Divisors of 138840
64 divisors
τ | Total Divisors | 64 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -138839 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.015625 | 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 | 64 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 138840 can be divided by 64 positive divisors. The sum of these divisors (counting 138840) is 1, the average is 0.015625.
Base conversion 138840
Base | System | Value |
---|---|---|
2 | Binary | 100001111001011000 |
3 | Ternary | 21001110020 |
4 | Quaternary | 201321120 |
5 | Quinary | 13420330 |
6 | Senary | 2550440 |
8 | Octal | 417130 |
10 | Decimal | 138840 |
12 | Duodecimal | 68420 |
16 | Hexadecimal | 21e58 |
20 | Vigesimal | h720 |
36 | Base36 | 2z4o |
Cryptographic Hash Functions
md5 | 82c5631e1e7bc1930b28e33f790de08e |
---|---|
sha1 | 672b15877c16a650aaeb05312844f0b8cf4cb79e |
sha256 | d9b3c7ef646af4a2bad0f4be6ded8508fc64fa3617b9fd328292827d5a063532 |
sha512 | 7208c62f31f3cf4ed035eab079a0d3fb620a6c3fa4f6cb3cfdbea79d0fb78a414a354973f52a942cced8403a0b61f96d4daa1f5fd0d0e3d8e8a3b3315715f877 |
ripemd-160 | 0d7bf05e47a98d75a1da6fe926d121b01a353431 |
138840 as geometric shapes
Circle
Radius = nDiameter | 277680 |
---|---|
Circumference | 872357.44804881 |
Area | 60559054043.549 |
Sphere
Radius = nVolume | 1.1210692084542E+16 |
---|---|
Surface area | 242236216174.19 |
Circumference | 872357.44804881 |
Square
Length = nPerimeter | 555360 |
---|---|
Area | 19276545600 |
Diagonal | 196349.41099988 |
Cube
Length = nSurface area | 115659273600 |
---|---|
Volume | 2676355591104000 |
Space diagonal | 240477.93412286 |
Equilateral Triangle
Length = nPerimeter | 416520 |
---|---|
Area | 8346989093.4046 |
Altitude | 120238.96706143 |
Triangular Pyramid
Length = nSurface area | 8346989093.4046 |
---|---|
Volume | 3.1541153122269E+14 |
Height | 65449.803666627 |