20989838 is an even 8-digits composite number following 20989837
and preceding 20989839 . In scientific notation, it is written as 2.0989838 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 10461496 positive integers (up to 20989838) that are relatively prime to 20989838.
20989838 has 8 divisors, whose sum is 31585032
The reverse of 20989838 is 83898902
Previous prime number is 317
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred eighty-nine thousand eight hundred thirty-eight
Scientific notation
2.0989838 × 10^7
Engineering notation
2.0989838 × 10^6
Prime Factorization
2 × 317 × 33107
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20989838
Product of the distinct prime numbers
The prime factorization of 20989838 is 2 × 317 × 33107.
Since it has a total of 3 prime factors.
10 , 2 , 8 , 90 , 566 , 148 , 8343 , 21 , 85683 , 3080 , 231715 , 934114 , 1526518 , 8584545 , 1844878 , 34942726 , 921527647 , 643340532 , 2538896600 , 8937115910
n×2
41979676
n×3
62969514
n×4
83959352
n×5
104949190
n÷2
10494919
n÷3
6996612.6666667
n÷3
5247459.5
n÷5
4197967.6
n2
440573299266244
n3
9.247562178724E+21
n4
1.9410483202634E+29
n5
4.0742289792502E+36
2 √n
4581.4667956889
3 √n
275.84790857307
4 √n
67.686533340753
5 √n
29.134114139499
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20989837
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20989838 can be divided by 8 positive divisors.
The sum of these divisors (counting 20989838) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100011110001110
3
Ternary
1110111101122102
4
Quaternary
1100010132032
5
Quinary
20333133323
6
Senary
2025515102
8
Octal
120043616
10
Decimal
20989838
12
Duodecimal
7042a92
16
Hexadecimal
140478e
20
Vigesimal
6b3ebi
36
Base36
chvv2
md5
03b70a86fd8c4468313738546a340a9b
sha1
1ab29d41f5afd87d1b8c21e099b0591f06bdddc3
sha256
76d503f953c72eb82b738951465af497c4f9f6b4e46ce2c5d5e19186361c83b2
sha512
5b78e23429ed34417d1de8bb0f554b8f60d6f84f78a47fadf441e9a856f32ff08c7db41b1e346c948739026beba600bc6817b5b5f50ca9ef64bcaa54128e5aec
ripemd-160
26d43d908010b372b6457100ea6b88d9009eac69
Diameter
41979676
Circumference
131883041.72168
Area
1.3841018403426E+15
Volume
3.8736097872392E+22
Surface area
5.5364073613706E+15
Circumference
131883041.72168
Perimeter
83959352
Area
440573299266244
Diagonal
29684113.571614
Surface area
2643439795597464
Volume
9.247562178724E+21
Space diagonal
36355465.85864
Perimeter
62969514
Area
1.9077383469685E+14
Altitude
18177732.92932
Surface area
1.9077383469685E+14
Volume
1.0898356543367E+21
Height
9894704.5238714