21820912 is an even 8-digits composite number following 21820911
and preceding 21820913 . In scientific notation, it is written as 2.1820912 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 10 positive divisors.
There are 10910448 positive integers (up to 21820912) that are relatively prime to 21820912.
21820912 has 10 divisors, whose sum is 42278048
The reverse of 21820912 is 21902812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eight hundred twenty thousand nine hundred twelve
Scientific notation
2.1820912 × 10^7
Engineering notation
2.1820912 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1363807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2727614
Product of the distinct prime numbers
The prime factorization of 21820912 is 2 × 2 × 2 × 2 × 1363807.
Since it has a total of 5 prime factors.
4 , 7 , 61 , 39 , 243 , 663 , 3476 , 1855 , 64880 , 13350 , 697400 , 349159 , 7162011 , 2799745 , 28289043 , 81828906 , 930714845 , 324906948 , 1984433587 , 5745745068
n×2
43641824
n×3
65462736
n×4
87283648
n×5
109104560
n÷2
10910456
n÷3
7273637.3333333
n÷3
5455228
n÷5
4364182.4
n2
476152200511744
n3
1.0390075265973E+22
n4
2.2672091805218E+29
n5
4.9472572013757E+36
2 √n
4671.2859043308
3 √n
279.44153995309
4 √n
68.346806101901
5 √n
29.361252614051
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21820911
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21820912 can be divided by 10 positive divisors.
The sum of these divisors (counting 21820912) is 1, the average is 0.1.
Base
System
Value
2
Binary
1010011001111010111110000
3
Ternary
1112001121122221
4
Quaternary
1103033113300
5
Quinary
21041232122
6
Senary
2055410424
8
Octal
123172760
10
Decimal
21820912
12
Duodecimal
7383a14
16
Hexadecimal
14cf5f0
20
Vigesimal
6g7c5c
36
Base36
czp4g
md5
7637acc10f9d7fc31e3f22875d1d6aec
sha1
1560b82482908d617d45df6052487d96f2fb6dd7
sha256
983ccb464f55b3340217f61c9ee34c74fe51d9488b48ccd779d01203dc44adb6
sha512
fd4f75ffa31ca5efe68e5ec1700e77db5d2e09d0c7b64631b48545d96dbb294f0d71ac4236db075bf8437a2d5aacc33c40be1ec076c5c6e207148cd3f3ee2f21
ripemd-160
d73ef6c4fbe897f43afaf49b924196530df8efc1
Diameter
43641824
Circumference
137104833.66766
Area
1.4958762551183E+15
Volume
4.3521845501102E+22
Surface area
5.9835050204732E+15
Circumference
137104833.66766
Perimeter
87283648
Area
476152200511744
Diagonal
30859429.69375
Surface area
2856913203070464
Volume
1.0390075265973E+22
Space diagonal
37794928.251489
Perimeter
65462736
Area
2.0617995085552E+14
Altitude
18897464.125745
Surface area
2.0617995085552E+14
Volume
1.2244821129347E+21
Height
10286476.564583