21686772 is an even 8-digits composite number following 21686771
and preceding 21686773 . In scientific notation, it is written as 2.1686772 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 7228920 positive integers (up to 21686772) that are relatively prime to 21686772.
21686772 has 12 divisors, whose sum is 50602496
The reverse of 21686772 is 27768612
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred eighty-six thousand seven hundred seventy-two
Scientific notation
2.1686772 × 10^7
Engineering notation
2.1686772 × 10^6
Prime Factorization
2 × 2 × 3 × 1807231
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10843386
Product of the distinct prime numbers
The prime factorization of 21686772 is 2 × 2 × 3 × 1807231.
Since it has a total of 4 prime factors.
4 , 5 , 20 , 2 , 339 , 992 , 3060 , 5070 , 87152 , 49659 , 177154 , 278489 , 3498942 , 7045669 , 61861860 , 43450134 , 983097574 , 762649664 , 8643061935 , 8067712231
n×2
43373544
n×3
65060316
n×4
86747088
n×5
108433860
n÷2
10843386
n÷3
7228924
n÷3
5421693
n÷5
4337354.4
n2
470316079779984
n3
1.0199637590122E+22
n4
2.2119721489961E+29
n5
4.7970535665629E+36
2 √n
4656.905839718
3 √n
278.8677576291
4 √n
68.241525772201
5 √n
29.325064953111
1 , 2 , 3 , 4 , 6 , 12 , 1807231 , 3614462 , 5421693 , 7228924 , 10843386 , 21686772
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
-21686771
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 21686772 can be divided by 12 positive divisors.
The sum of these divisors (counting 21686772) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010101110100111110100
3
Ternary
1111210210122210
4
Quaternary
1102232213310
5
Quinary
21022434042
6
Senary
2052453420
8
Octal
122564764
10
Decimal
21686772
12
Duodecimal
731a270
16
Hexadecimal
14ae9f4
20
Vigesimal
6fagic
36
Base36
cwtmc
md5
72871dd51b91f5b05b6ec771da8bae66
sha1
91c12b254218f17247d7655b0ffe14922bbd5e47
sha256
47e0896fc0d3ee419d1e9c72c54eb6d630dfb784f9a7c7c4d4134e99879599cf
sha512
3b617a944ae9a06ea1142dab2334adcf62a4b6c77e0504c806fa0c27d9e9a9176d12e8e887894fbfdf984ce5a5011ba569cc5b50596cf98bec8d372e1f6bcf67
ripemd-160
67e0abfdde17a0e9dd242f22eda2b1ad6f4bf082
Diameter
43373544
Circumference
136262007.19055
Area
1.4775415411019E+15
Volume
4.2724142029875E+22
Surface area
5.9101661644078E+15
Circumference
136262007.19055
Perimeter
86747088
Area
470316079779984
Diagonal
30669727.086493
Surface area
2821896478679904
Volume
1.0199637590122E+22
Space diagonal
37562590.956162
Perimeter
65060316
Area
2.0365283644889E+14
Altitude
18781295.478081
Surface area
2.0365283644889E+14
Volume
1.2020388176035E+21
Height
10223242.362164