39855 is an odd 5-digits composite number following 39854
and preceding 39856 . In scientific notation, it is written as 3.9855 × 10^4.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 21248 positive integers (up to 39855) that are relatively prime to 39855.
39855 has 8 divisors, whose sum is 63792
The reverse of 39855 is 55893
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 30
Digital Root 3
Name
thirty-nine thousand eight hundred fifty-five
Scientific notation
3.9855 × 10^4
Engineering notation
3.9855 × 10^3
Prime Factorization
3 × 5 × 2657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
39855
Product of the distinct prime numbers
The prime factorization of 39855 is 3 × 5 × 2657.
Since it has a total of 3 prime factors.
3 , 1 , 47 , 70 , 483 , 638 , 5214 , 8916 , 75012 , 24097 , 815625 , 412014 , 2326139 , 9407827 , 34000505 , 56695176 , 112978743 , 544828765 , 9790978559 , 6021530907
n×2
79710
n×3
119565
n×4
159420
n×5
199275
n÷2
19927.5
n÷3
13285
n÷3
9963.75
n÷5
7971
n2
1588421025
n3
63306519951375
n4
2523081352662050625
n5
1.0055740731035E+23
2 √n
199.63717088759
3 √n
34.158144480345
4 √n
14.129301854217
5 √n
8.319487291965
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-39854
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 39855 can be divided by 8 positive divisors.
The sum of these divisors (counting 39855) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101111
3
Ternary
2000200010
4
Quaternary
21232233
5
Quinary
2233410
6
Senary
504303
8
Octal
115657
10
Decimal
39855
12
Duodecimal
1b093
16
Hexadecimal
9baf
20
Vigesimal
4jcf
36
Base36
ur3
md5
6c714999e23482178f39ffb77647f8a8
sha1
c036ac8fa1560b24007a442a4fdc0941ebb2293e
sha256
3de3edbeb890d6a25b269928e16aad304b227fb722237ec62a5ecbf015bfc7b4
sha512
7790522a946aff9ad893611d48cb5e2fd7ed67ef14b7bbc04bb1a6c7ea3f75df32543d5096030634da12c1ff82847c685b605aa39acf2aeb3db313527e3b0f20
ripemd-160
617b274ab968457994439c3245b77b6b2a74346c
Diameter
79710
Circumference
250416.35041764
Area
4990171822.9476
Volume
2.6517773067143E+14
Surface area
19960687291.79
Circumference
250416.35041764
Perimeter
159420
Area
1588421025
Diagonal
56363.48152838
Surface area
9530526150
Volume
63306519951375
Space diagonal
69030.884935658
Perimeter
119565
Area
687806479.77766
Altitude
34515.442467829
Surface area
687806479.77766
Volume
7460744925156.5
Height
18787.827176127