20872021 is an odd 8-digits composite number following 20872020
and preceding 20872022 . In scientific notation, it is written as 2.0872021 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20198700 positive integers (up to 20872021) that are relatively prime to 20872021.
20872021 has 4 divisors, whose sum is 21545344
The reverse of 20872021 is 12027802
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million eight hundred seventy-two thousand twenty-one
Scientific notation
2.0872021 × 10^7
Engineering notation
2.0872021 × 10^6
Prime Factorization
31 × 673291
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20872021
Product of the distinct prime numbers
The prime factorization of 20872021 is 31 × 673291.
Since it has a total of 2 prime factors.
1 , 10 , 53 , 45 , 372 , 91 , 3454 , 8321 , 25529 , 90795 , 155333 , 17676 , 8887470 , 4267440 , 40820623 , 22633688 , 738527409 , 843153620 , 6223135718 , 1134884612
n×2
41744042
n×3
62616063
n×4
83488084
n×5
104360105
n÷2
10436010.5
n÷3
6957340.3333333
n÷3
5218005.25
n÷5
4174404.2
n2
435641260624441
n3
9.0927135402198E+21
n4
1.8978330795845E+29
n5
3.9611611891583E+36
2 √n
4568.5907017372
3 √n
275.33082389915
4 √n
67.591350790891
5 √n
29.101334213459
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20872020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20872021 can be divided by 4 positive divisors.
The sum of these divisors (counting 20872021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100111101101010101
3
Ternary
1110021102000211
4
Quaternary
1033213231111
5
Quinary
20320401041
6
Senary
2023205421
8
Octal
117475525
10
Decimal
20872021
12
Duodecimal
6ba6871
16
Hexadecimal
13e7b55
20
Vigesimal
6a9011
36
Base36
cfcyd
md5
01224a44fcf7af95240fcb7d83d3ac50
sha1
8583d854fc73fbce9523e8a50d25d3b018ae30ce
sha256
7e62d63169236ed8ac0611585f576444ad9e7f2ce07516d6a3e3ca4d4cda6ada
sha512
ddb1d14822a8b916f7ca5097f87b289b1703858dbe9b29a478225afd380fc9f979d63b2dc6a5c49db76ad471b24a1eafb4a4ae38e4185ba47afacd174e0df517
ripemd-160
67b49dc71b7a201098008b379cee41e738b1bc2d
Diameter
41744042
Circumference
131142775.67834
Area
1.3686073839783E+15
Volume
3.8087469412201E+22
Surface area
5.4744295359134E+15
Circumference
131142775.67834
Perimeter
83488084
Area
435641260624441
Diagonal
29517495.172336
Surface area
2613847563746646
Volume
9.0927135402198E+21
Space diagonal
36151400.828645
Perimeter
62616063
Area
1.8863819931872E+14
Altitude
18075700.414322
Surface area
1.8863819931872E+14
Volume
1.0715865672794E+21
Height
9839165.0574454