20688977 is an odd 8-digits composite number following 20688976
and preceding 20688978 . In scientific notation, it is written as 2.0688977 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 19041792 positive integers (up to 20688977) that are relatively prime to 20688977.
20688977 has 16 divisors, whose sum is 22429440
The reverse of 20688977 is 77988602
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million six hundred eighty-eight thousand nine hundred seventy-seven
Scientific notation
2.0688977 × 10^7
Engineering notation
2.0688977 × 10^6
Prime Factorization
43 × 29 × 47 × 353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20688977
Product of the distinct prime numbers
The prime factorization of 20688977 is 43 × 29 × 47 × 353.
Since it has a total of 4 prime factors.
7 , 1 , 46 , 88 , 134 , 643 , 8958 , 1066 , 71872 , 38230 , 673052 , 389784 , 2829482 , 330714 , 94227758 , 45504071 , 665311311 , 310971056 , 6898688559 , 6424644191
n×2
41377954
n×3
62066931
n×4
82755908
n×5
103444885
n÷2
10344488.5
n÷3
6896325.6666667
n÷3
5172244.25
n÷5
4137795.4
n2
428033769306529
n3
8.8555808084061E+21
n4
1.8321290766675E+29
n5
3.7904876328206E+36
2 √n
4548.5137132914
3 √n
274.52359167865
4 √n
67.442669826241
5 √n
29.050111481528
1 , 29 , 43 , 47 , 353 , 1247 , 1363 , 2021 , 10237 , 15179 , 16591 , 58609 , 440191 , 481139 , 713413 , 20688977
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20688976
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20688977 can be divided by 16 positive divisors.
The sum of these divisors (counting 20688977) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111011000001010001
3
Ternary
1102221002221102
4
Quaternary
1032323001101
5
Quinary
20244021402
6
Senary
2015234145
8
Octal
116730121
10
Decimal
20688977
12
Duodecimal
6b18955
16
Hexadecimal
13bb051
20
Vigesimal
69628h
36
Base36
cbfpt
md5
42b3b940f60fc1f7717613aeead206f6
sha1
9d2b3911eb5e0cbec22514b8d168d823021e9bc1
sha256
43d3a077ab642b7aec366a1d5787d9b3591db4ed84d76f2646f2a8b0fd1ade38
sha512
f89c829c77cd61d6545977b38baa58c268ac387b74669493a81ee901deb8c7be4c2469effc901108b594b862f57feb2d1f85c4fe9a58009e7dd6df1484e0bcfd
ripemd-160
770aade266aef59bf2b4506f72689e83c2d299be
Diameter
41377954
Circumference
129992676.30698
Area
1.3447077451417E+15
Volume
3.7094170147946E+22
Surface area
5.378830980567E+15
Circumference
129992676.30698
Perimeter
82755908
Area
428033769306529
Diagonal
29258631.865025
Surface area
2568202615839174
Volume
8.8555808084061E+21
Space diagonal
35834359.320624
Perimeter
62066931
Area
1.8534405894853E+14
Altitude
17917179.660312
Surface area
1.8534405894853E+14
Volume
1.0436402068282E+21
Height
9752877.2883417