21861212 is an even 8-digits composite number following 21861211
and preceding 21861213 . In scientific notation, it is written as 2.1861212 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 6 positive divisors.
There are 10930604 positive integers (up to 21861212) that are relatively prime to 21861212.
21861212 has 6 divisors, whose sum is 38257128
The reverse of 21861212 is 21216812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million eight hundred sixty-one thousand two hundred twelve
Scientific notation
2.1861212 × 10^7
Engineering notation
2.1861212 × 10^6
Prime Factorization
2 × 2 × 5465303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10930606
Product of the distinct prime numbers
The prime factorization of 21861212 is 2 × 2 × 5465303.
Since it has a total of 3 prime factors.
10 , 7 , 70 , 42 , 744 , 894 , 8077 , 6422 , 97493 , 10410 , 37031 , 966266 , 4524622 , 2416250 , 94149939 , 98740512 , 56197095 , 206354011 , 6347395692 , 6609527806
n×2
43722424
n×3
65583636
n×4
87444848
n×5
109306060
n÷2
10930606
n÷3
7287070.6666667
n÷3
5465303
n÷5
4372242.4
n2
477912590108944
n3
1.0447748449841E+22
n4
2.2840044378464E+29
n5
4.9931105224701E+36
2 √n
4675.5975019242
3 √n
279.61346323465
4 √n
68.378340883091
5 √n
29.372089790117
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21861211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21861212 can be divided by 6 positive divisors.
The sum of these divisors (counting 21861212) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010011011001001101011100
3
Ternary
1112010122221112
4
Quaternary
1103121031130
5
Quinary
21044024322
6
Senary
2100321152
8
Octal
123311534
10
Decimal
21861212
12
Duodecimal
73a31b8
16
Hexadecimal
14d935c
20
Vigesimal
6gcd0c
36
Base36
d0k7w
md5
dfeb4031650149de5bbb376a349317d4
sha1
b11a35dac132a30a39a82704402ba4a3c4d7b356
sha256
81503e87386ff8528eaf211065bae52c8864769569f0519194832b6bb895ba41
sha512
6b3040b118c8a09220d3dedd67ad8bc7532bbab6d57280310defa607c70d11dfc340a4842880c033a9fe8f02e8a330c4b6450c37743e37df4ebca2b7372296c2
ripemd-160
1ec3eabb5af35f7deda3b785f4742e0622875335
Diameter
43722424
Circumference
137358046.03554
Area
1.5014066821443E+15
Volume
4.3763426368765E+22
Surface area
6.0056267285773E+15
Circumference
137358046.03554
Perimeter
87444848
Area
477912590108944
Diagonal
30916422.500313
Surface area
2867475540653664
Volume
1.0447748449841E+22
Space diagonal
37864729.899034
Perimeter
65583636
Area
2.0694222191138E+14
Altitude
18932364.949517
Surface area
2.0694222191138E+14
Volume
1.2312789628356E+21
Height
10305474.166771