20887621 is an odd 8-digits prime number following 20887620
and preceding 20887622 . In scientific notation, it is written as 2.0887621 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 20887620 positive integers (up to 20887621) that are relatively prime to 20887621.
20887621 has 2 divisors, whose sum is 20887622
The reverse of 20887621 is 12678802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eight hundred eighty-seven thousand six hundred twenty-one
Scientific notation
2.0887621 × 10^7
Engineering notation
2.0887621 × 10^6
Prime Factorization
20887621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20887621
Product of the distinct prime numbers
The prime factorization of 20887621 is 20887621.
Since it has a total of 1 prime factors.
2 , 4 , 38 , 56 , 110 , 471 , 1590 , 5251 , 84139 , 50828 , 223292 , 941637 , 3824690 , 9026527 , 68755177 , 56970166 , 818125270 , 115337470 , 5578221675 , 1768871472
n×2
41775242
n×3
62662863
n×4
83550484
n×5
104438105
n÷2
10443810.5
n÷3
6962540.3333333
n÷3
5221905.25
n÷5
4177524.2
n2
436292711039641
n3
9.1131167932585E+21
n4
1.9035132970632E+29
n5
3.9759864317516E+36
2 √n
4570.2976927111
3 √n
275.39940200845
4 √n
67.603976900113
5 √n
29.105683051075
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20887622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10443811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4570.2978021131
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999042495
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20887621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20887621) is 20887622, the average is 10443811.
Base
System
Value
2
Binary
1001111101011100001000101
3
Ternary
1110022012102121
4
Quaternary
1033223201011
5
Quinary
20321400441
6
Senary
2023405541
8
Octal
117534105
10
Decimal
20887621
12
Duodecimal
6bb38b1
16
Hexadecimal
13eb845
20
Vigesimal
6aaj11
36
Base36
cfozp
md5
f90fb461cc533e323e111d7149f5307e
sha1
042a1f856d01bb8793d30a9027d4c64c79541a73
sha256
fb35341429f0e61ccebabf403e0f28a6f341ef05d821ad40ca9652915f87f5d4
sha512
eba5eeb99233d76a54ab6c774918054c702695be0cd1b5a833b4922534ec17d986966c0d2bbb2284a928853d02f05d68514d36d41542a90379189144da5021aa
ripemd-160
7f01c7251f6d9e41633f16f97e83e59f211b48bf
Diameter
41775242
Circumference
131240793.36914
Area
1.3706539758169E+15
Volume
3.8172934358676E+22
Surface area
5.4826159032676E+15
Circumference
131240793.36914
Perimeter
83550484
Area
436292711039641
Diagonal
29539556.903909
Surface area
2617756266237846
Volume
9.1131167932585E+21
Space diagonal
36178420.821243
Perimeter
62662863
Area
1.8892028562316E+14
Altitude
18089210.410621
Surface area
1.8892028562316E+14
Volume
1.0739911137097E+21
Height
9846518.9679697