20689787 is an odd 8-digits prime number following 20689786
and preceding 20689788 . In scientific notation, it is written as 2.0689787 × 10^7.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 20689786 positive integers (up to 20689787) that are relatively prime to 20689787.
20689787 has 2 divisors, whose sum is 20689788
The reverse of 20689787 is 78798602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million six hundred eighty-nine thousand seven hundred eighty-seven
Scientific notation
2.0689787 × 10^7
Engineering notation
2.0689787 × 10^6
Prime Factorization
20689787
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20689787
Product of the distinct prime numbers
The prime factorization of 20689787 is 20689787.
Since it has a total of 1 prime factors.
9 , 5 , 61 , 10 , 904 , 398 , 7280 , 565 , 23496 , 38914 , 385494 , 902506 , 9061245 , 1951034 , 86874140 , 18053051 , 919207291 , 648050940 , 9858502075 , 1737244566
n×2
41379574
n×3
62069361
n×4
82759148
n×5
103448935
n÷2
10344893.5
n÷3
6896595.6666667
n÷3
5172446.75
n÷5
4137957.4
n2
428067286105369
n3
8.8566209711881E+21
n4
1.8324160143362E+29
n5
3.7912297032004E+36
2 √n
4548.6027524944
3 √n
274.52717428221
4 √n
67.443329933318
5 √n
29.050338947795
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20689788
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10344894
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4548.6028624183
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999903334
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20689787 can be divided by 2 positive divisors.
The sum of these divisors (counting 20689787) is 20689788, the average is 10344894.
Base
System
Value
2
Binary
1001110111011001101111011
3
Ternary
1102221011001102
4
Quaternary
1032323031323
5
Quinary
20244033122
6
Senary
2015242015
8
Octal
116731573
10
Decimal
20689787
12
Duodecimal
6b1930b
16
Hexadecimal
13bb37b
20
Vigesimal
696497
36
Base36
cbgcb
md5
6beb48433167343f2e3e92b92c10c7fd
sha1
faa951aca4da182e608638864cfaf1aff0329303
sha256
0076aa7f8b91459a9e2e359c98341510970bafec027def8f9a961603b4121f61
sha512
7bc8989922cf616ed8a516e5bd11d9c68510aab18fddc2e846da121f988beb28abf9c33fc38ec117858fd3aedbbe2a923d72d6d47cacbb299411be93cd05c268
ripemd-160
895759391bd810ddd89d715c8fb20f0ce55fe620
Diameter
41379574
Circumference
129997765.68708
Area
1.3448130412707E+15
Volume
3.7098527171619E+22
Surface area
5.379252165083E+15
Circumference
129997765.68708
Perimeter
82759148
Area
428067286105369
Diagonal
29259777.378011
Surface area
2568403716632214
Volume
8.8566209711881E+21
Space diagonal
35835762.281778
Perimeter
62069361
Area
1.8535857214816E+14
Altitude
17917881.140889
Surface area
1.8535857214816E+14
Volume
1.0437627911877E+21
Height
9753259.1260035