21006980 is an even 8-digits composite number following 21006979
and preceding 21006981 . In scientific notation, it is written as 2.1006980 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 8402784 positive integers (up to 21006980) that are relatively prime to 21006980.
21006980 has 12 divisors, whose sum is 44114700
The reverse of 21006980 is 08960012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million six thousand nine hundred eighty
Scientific notation
2.1006980 × 10^7
Engineering notation
2.1006980 × 10^6
Prime Factorization
2 × 2 × 5 × 1050349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10503490
Product of the distinct prime numbers
The prime factorization of 21006980 is 2 × 2 × 5 × 1050349.
Since it has a total of 4 prime factors.
10 , 10 , 3 , 17 , 551 , 900 , 6933 , 4460 , 57596 , 44337 , 776980 , 539674 , 2072472 , 1352797 , 54199709 , 98405895 , 139803647 , 430047293 , 3768428711 , 3321036789
n×2
42013960
n×3
63020940
n×4
84027920
n×5
105034900
n÷2
10503490
n÷3
7002326.6666667
n÷3
5251745
n÷5
4201396
n2
441293208720400
n3
9.2702376097253E+21
n4
1.9473969606275E+29
n5
4.0908929003962E+36
2 √n
4583.3372121196
3 √n
275.92298138027
4 √n
67.700348685362
5 √n
29.13887124071
1 , 2 , 4 , 5 , 10 , 20 , 1050349 , 2100698 , 4201396 , 5251745 , 10503490 , 21006980
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21006979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21006980 can be divided by 12 positive divisors.
The sum of these divisors (counting 21006980) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000001000101010000100
3
Ternary
1110112021011022
4
Quaternary
1100020222010
5
Quinary
20334210410
6
Senary
2030130312
8
Octal
120105204
10
Decimal
21006980
12
Duodecimal
7050998
16
Hexadecimal
1408a84
20
Vigesimal
6b5h90
36
Base36
ci938
md5
027e2b9657000a70897c1a433b951606
sha1
62f422c06fd5a83424accee3b344e0045bddaa68
sha256
425619d065271f16c0efa39fad07ee07f97154ca74ff6df0a6a88bb86cf43212
sha512
dc8a7a4c3ecba68cf3f26edcb5711ffb7a321d1b776e79c6b9b5f4b086f45ca003b83ca903086a632c75475d75a4f51cdc755a8048d206c2872b4b2731a29607
ripemd-160
b6334ef94925039e2b05621c9cbc51a171a75af6
Diameter
42013960
Circumference
131990748.08422
Area
1.3863635025951E+15
Volume
3.883108049566E+22
Surface area
5.5454540103803E+15
Circumference
131990748.08422
Perimeter
84027920
Area
441293208720400
Diagonal
29708356.0205
Surface area
2647759252322400
Volume
9.2702376097253E+21
Space diagonal
36385156.673583
Perimeter
63020940
Area
1.9108556463471E+14
Altitude
18192578.336792
Surface area
1.9108556463471E+14
Volume
1.0925079795079E+21
Height
9902785.3401668