20871207 is an odd 8-digits composite number following 20871206
and preceding 20871208 . In scientific notation, it is written as 2.0871207 × 10^7.
The sum of its digits is 27. It has a total of 6 prime factors and 24 positive divisors.
There are 11924640 positive integers (up to 20871207) that are relatively prime to 20871207.
20871207 has 24 divisors, whose sum is 35162400
The reverse of 20871207 is 70217802
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eight hundred seventy-one thousand two hundred seven
Scientific notation
2.0871207 × 10^7
Engineering notation
2.0871207 × 10^6
Prime Factorization
3 × 3 × 7 × 7 × 7 × 6761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
141981
Product of the distinct prime numbers
The prime factorization of 20871207 is 3 × 3 × 7 × 7 × 7 × 6761.
Since it has a total of 6 prime factors.
9 , 1 , 64 , 52 , 983 , 364 , 3896 , 4700 , 10669 , 57228 , 178342 , 846910 , 4306910 , 2136028 , 81722869 , 26008115 , 945782012 , 45522507 , 126632548 , 4509866206
n×2
41742414
n×3
62613621
n×4
83484828
n×5
104356035
n÷2
10435603.5
n÷3
6957069
n÷3
5217801.75
n÷5
4174241.4
n2
435607281636849
n3
9.09164974575E+21
n4
1.8975370381505E+29
n5
3.9603888313405E+36
2 √n
4568.5016143151
3 √n
275.32724459069
4 √n
67.590691772722
5 √n
29.10110722197
1 , 3 , 7 , 9 , 21 , 49 , 63 , 147 , 343 , 441 , 1029 , 3087 , 6761 , 20283 , 47327 , 60849 , 141981 , 331289 , 425943 , 993867 , 2319023 , 2981601 , 6957069 , 20871207
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20871206
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20871207 can be divided by 24 positive divisors.
The sum of these divisors (counting 20871207) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111100111100000100111
3
Ternary
1110021100220200
4
Quaternary
1033213200213
5
Quinary
20320334312
6
Senary
2023201543
8
Octal
117474047
10
Decimal
20871207
12
Duodecimal
6ba62b3
16
Hexadecimal
13e7827
20
Vigesimal
6a8i07
36
Base36
cfcbr
md5
34aa5795fd52375039d73fda6d8b58f3
sha1
10a7d937ebc43a509bea5f9a5fd0c6d5ae7a3dab
sha256
097702923024c32b046a2daa89596b8cbce69c4920c0183143cfc8e3d6166807
sha512
437440182aa916e9f4b09e2d661dc286d5fe67a2246d7af1fccc0665647b25efa26fc0646af14dcfdc85323c8e88aa905293e68832bfb757c8cf85a72fc51b12
ripemd-160
d541c15a5e001f9f111650ed9ee4a5cde2446b87
Diameter
41742414
Circumference
131137661.1655
Area
1.3685006358405E+15
Volume
3.8083013400346E+22
Surface area
5.4740025433622E+15
Circumference
131137661.1655
Perimeter
83484828
Area
435607281636849
Diagonal
29516344.002496
Surface area
2613643689821094
Volume
9.09164974575E+21
Space diagonal
36149990.939287
Perimeter
62613621
Area
1.886234859855E+14
Altitude
18074995.469644
Surface area
1.886234859855E+14
Volume
1.0714611978988E+21
Height
9838781.3341654