20921877 is an odd 8-digits composite number following 20921876
and preceding 20921878 . In scientific notation, it is written as 2.0921877 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 13947912 positive integers (up to 20921877) that are relatively prime to 20921877.
20921877 has 4 divisors, whose sum is 23246540
The reverse of 20921877 is 77812902
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred twenty-one thousand eight hundred seventy-seven
Scientific notation
2.0921877 × 10^7
Engineering notation
2.0921877 × 10^6
Prime Factorization
9 × 2324653
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921877
Product of the distinct prime numbers
The prime factorization of 20921877 is 9 × 2324653.
Since it has a total of 2 prime factors.
2 , 1 , 64 , 17 , 522 , 269 , 243 , 1083 , 62968 , 74817 , 175841 , 593805 , 9387320 , 3714608 , 98606745 , 40269740 , 1439125 , 700232987 , 7549417450 , 357346494
n×2
41843754
n×3
62765631
n×4
83687508
n×5
104609385
n÷2
10460938.5
n÷3
6973959
n÷3
5230469.25
n÷5
4184375.4
n2
437724937203129
n3
9.1580272959966E+21
n4
1.9160312064948E+29
n5
4.0086969230446E+36
2 √n
4574.0438345079
3 √n
275.54987277876
4 √n
67.631677744293
5 √n
29.115223542591
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921876
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921877 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921877) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011111000010101
3
Ternary
1110100221102100
4
Quaternary
1033303320111
5
Quinary
20324000002
6
Senary
2024232313
8
Octal
117637025
10
Decimal
20921877
12
Duodecimal
700b699
16
Hexadecimal
13f3e15
20
Vigesimal
6af4dh
36
Base36
cgff9
md5
a943dd8f0cef802c97fc9c382e8ba004
sha1
ba566377f0e0062adaad372d382b8ea90bdede43
sha256
d3d12d54545fdd0e1211592f7fb6b351e8adacf3014023b20e2e5c95fb9cb1e0
sha512
c635e4b36d8215333203e11782cc2acfa668dea5efc5319de989c427bd0aa247d42cc5d403db20f759fd6c6d7dd232081da02bfd188a8e1c582578b185401bb4
ripemd-160
5fc9829c5b7a254bb8663578e2930923b8b96304
Diameter
41843754
Circumference
131456030.16502
Area
1.3751534470104E+15
Volume
3.8361055032637E+22
Surface area
5.5006137880416E+15
Circumference
131456030.16502
Perimeter
83687508
Area
437724937203129
Diagonal
29588002.203702
Surface area
2626349623218774
Volume
9.1580272959966E+21
Space diagonal
36237753.953707
Perimeter
62765631
Area
1.8954045774393E+14
Altitude
18118876.976853
Surface area
1.8954045774393E+14
Volume
1.0792838672151E+21
Height
9862667.4012339