20871210 is an even 8-digits composite number following 20871209
and preceding 20871211 . In scientific notation, it is written as 2.0871210 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 5545280 positive integers (up to 20871210) that are relatively prime to 20871210.
20871210 has 32 divisors, whose sum is 50274432
The reverse of 20871210 is 01217802
Previous prime number is 2237
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million eight hundred seventy-one thousand two hundred ten
Scientific notation
2.0871210 × 10^7
Engineering notation
2.0871210 × 10^6
Prime Factorization
2 × 5 × 3 × 2237 × 311
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20871210
Product of the distinct prime numbers
The prime factorization of 20871210 is 2 × 5 × 3 × 2237 × 311.
Since it has a total of 5 prime factors.
6 , 4 , 11 , 51 , 287 , 306 , 3042 , 3352 , 56803 , 88133 , 14357 , 586366 , 7765095 , 2463036 , 28636571 , 38610430 , 947478694 , 937145708 , 9150511835 , 5346771784
n×2
41742420
n×3
62613630
n×4
83484840
n×5
104356050
n÷2
10435605
n÷3
6957070
n÷3
5217802.5
n÷5
4174242
n2
435607406864100
n3
9.0916536662161E+21
n4
1.8975381291487E+29
n5
3.9603916776469E+36
2 √n
4568.5019426503
3 √n
275.32725778241
4 √n
67.590694201571
5 √n
29.101108058561
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 311 , 622 , 933 , 1555 , 1866 , 2237 , 3110 , 4474 , 4665 , 6711 , 9330 , 11185 , 13422 , 22370 , 33555 , 67110 , 695707 , 1391414 , 2087121 , 3478535 , 4174242 , 6957070 , 10435605 , 20871210
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
-20871209
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 20871210 can be divided by 32 positive divisors.
The sum of these divisors (counting 20871210) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001111100111100000101010
3
Ternary
1110021100220210
4
Quaternary
1033213200222
5
Quinary
20320334320
6
Senary
2023201550
8
Octal
117474052
10
Decimal
20871210
12
Duodecimal
6ba62b6
16
Hexadecimal
13e782a
20
Vigesimal
6a8i0a
36
Base36
cfcbu
md5
91bbaebbc630040b213648f2b1753582
sha1
13f2c5ef880c4dc937596d306051854039a6032e
sha256
5d25b145bbb833e7d3c0070219555b77618094b3c1d561698209b2f3c28da909
sha512
bad5899548c18faaa369d249b061a92423f7fcf9afa5601af23dc924b5cfc3dfd9d9c05c35596ea33ccf9a5e19a3a5101e7c3c428528c749b2043e5d218a6366
ripemd-160
cb7013bfbf07360ed7e5216da168a2c02bf81391
Diameter
41742420
Circumference
131137680.01506
Area
1.3685010292536E+15
Volume
3.8083029822356E+22
Surface area
5.4740041170142E+15
Circumference
131137680.01506
Perimeter
83484840
Area
435607406864100
Diagonal
29516348.245137
Surface area
2613644441184600
Volume
9.0916536662161E+21
Space diagonal
36149996.13544
Perimeter
62613630
Area
1.8862354021049E+14
Altitude
18074998.06772
Surface area
1.8862354021049E+14
Volume
1.0714616599302E+21
Height
9838782.748379