21089021 is an odd 8-digits composite number following 21089020
and preceding 21089022 . In scientific notation, it is written as 2.1089021 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20408700 positive integers (up to 21089021) that are relatively prime to 21089021.
21089021 has 4 divisors, whose sum is 21769344
The reverse of 21089021 is 12098012
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million eighty-nine thousand twenty-one
Scientific notation
2.1089021 × 10^7
Engineering notation
2.1089021 × 10^6
Prime Factorization
31 × 680291
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21089021
Product of the distinct prime numbers
The prime factorization of 21089021 is 31 × 680291.
Since it has a total of 2 prime factors.
9 , 1 , 28 , 64 , 581 , 23 , 441 , 3083 , 40766 , 69999 , 371917 , 64303 , 1063589 , 1979066 , 17125909 , 89910753 , 285805208 , 426716200 , 8294254771 , 8745402387
n×2
42178042
n×3
63267063
n×4
84356084
n×5
105445105
n÷2
10544510.5
n÷3
7029673.6666667
n÷3
5272255.25
n÷5
4217804.2
n2
444746806738441
n3
9.3792747469899E+21
n4
1.9779972210404E+29
n5
4.1714024932463E+36
2 √n
4592.2784105496
3 √n
276.28171281338
4 √n
67.766351610144
5 √n
29.161595653026
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
-21089020
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 21089021 can be divided by 4 positive divisors.
The sum of these divisors (counting 21089021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100101011111101
3
Ternary
1110200102200212
4
Quaternary
1100130223331
5
Quinary
20344322041
6
Senary
2032002205
8
Octal
120345375
10
Decimal
21089021
12
Duodecimal
7090365
16
Hexadecimal
141cafd
20
Vigesimal
6bg2b1
36
Base36
ck0e5
md5
880ac4e21d6cdcdadf06b172725a30be
sha1
1e12ab068b4c2167a8f8951cfe7b3c7193c01aeb
sha256
408f867fa9af296dba05cbfd9657dd22e29721aa8e20959b1e5d29ef129688be
sha512
c6dfae4e310d3905e3a0f65d446c4f5a6aed1ea1b920f6b24017be78609290f621e2a942fdfdb2ae0124ccdc6d6f784dcfe093099f70d2b85eff4d18e0ba4328
ripemd-160
0e73c128a2025538cebd91a03385ffe869f7b339
Diameter
42178042
Circumference
132506226.89
Area
1.397213300757E+15
Volume
3.9287814188192E+22
Surface area
5.588853203028E+15
Circumference
132506226.89
Perimeter
84356084
Area
444746806738441
Diagonal
29824379.515371
Surface area
2668480840430646
Volume
9.3792747469899E+21
Space diagonal
36527255.853887
Perimeter
63267063
Area
1.9258101644375E+14
Altitude
18263627.926944
Surface area
1.9258101644375E+14
Volume
1.1053581293681E+21
Height
9941459.838457