20863921 is an odd 8-digits composite number following 20863920
and preceding 20863922 . In scientific notation, it is written as 2.0863921 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18421392 positive integers (up to 20863921) that are relatively prime to 20863921.
20863921 has 8 divisors, whose sum is 23446080
The reverse of 20863921 is 12936802
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred sixty-three thousand nine hundred twenty-one
Scientific notation
2.0863921 × 10^7
Engineering notation
2.0863921 × 10^6
Prime Factorization
13 × 23 × 69779
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20863921
Product of the distinct prime numbers
The prime factorization of 20863921 is 13 × 23 × 69779.
Since it has a total of 3 prime factors.
5 , 7 , 37 , 97 , 184 , 895 , 3686 , 7329 , 16617 , 47108 , 498543 , 306988 , 8125729 , 8686353 , 22856847 , 33672988 , 853963842 , 202966843 , 8986832880 , 4026761780
n×2
41727842
n×3
62591763
n×4
83455684
n×5
104319605
n÷2
10431960.5
n÷3
6954640.3333333
n÷3
5215980.25
n÷5
4172784.2
n2
435303199494241
n3
9.0821315652951E+21
n4
1.8948887548992E+29
n5
3.9534809286006E+36
2 √n
4567.7041278962
3 √n
275.29520255657
4 √n
67.584792134741
5 √n
29.099075137474
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
-20863920
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 20863921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20863921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100101101110110001
3
Ternary
1110020222220211
4
Quaternary
1033211232301
5
Quinary
20320121141
6
Senary
2023104121
8
Octal
117455661
10
Decimal
20863921
12
Duodecimal
6ba2041
16
Hexadecimal
13e5bb1
20
Vigesimal
6a7jg1
36
Base36
cf6pd
md5
bc2bdbadb2a45a13166606b67cea6a37
sha1
05c329db55136d170e04d95bfbd5753d670b2837
sha256
ac962e9a6434d5a6d2ec6c5035f77dd478b00ef98859e354d1aef0eae0d9e1f7
sha512
59b053ddea62d1deb39b074f9bcc8577ae12fc6abe3e95bc37f8c8ac8dce5152e4605bc0fa2c7c2ee5d3b242a751a6eb3bfe0093b25355f2f6dc8367b9ff9ab5
ripemd-160
5c174d867aadcfbabae7057633966ce275342ebf
Diameter
41727842
Circumference
131091881.87736
Area
1.3675453336152E+15
Volume
3.8043143739289E+22
Surface area
5.470181334461E+15
Circumference
131091881.87736
Perimeter
83455684
Area
435303199494241
Diagonal
29506040.042481
Surface area
2611819196965446
Volume
9.0821315652951E+21
Space diagonal
36137371.217103
Perimeter
62591763
Area
1.8849181455533E+14
Altitude
18068685.608552
Surface area
1.8849181455533E+14
Volume
1.0703394695748E+21
Height
9835346.6808269