21896687 is an odd 8-digits composite number following 21896686
and preceding 21896688 . In scientific notation, it is written as 2.1896687 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 21886536 positive integers (up to 21896687) that are relatively prime to 21896687.
21896687 has 4 divisors, whose sum is 21906840
The reverse of 21896687 is 78669812
Previous prime number is 3109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million eight hundred ninety-six thousand six hundred eighty-seven
Scientific notation
2.1896687 × 10^7
Engineering notation
2.1896687 × 10^6
Prime Factorization
3109 × 7043
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21896687
Product of the distinct prime numbers
The prime factorization of 21896687 is 3109 × 7043.
Since it has a total of 2 prime factors.
2 , 4 , 94 , 65 , 779 , 31 , 2076 , 4205 , 54694 , 44289 , 645391 , 256828 , 8637841 , 2380847 , 8301705 , 21208981 , 91572603 , 945522505 , 9734654089 , 9648627280
n×2
43793374
n×3
65690061
n×4
87586748
n×5
109483435
n÷2
10948343.5
n÷3
7298895.6666667
n÷3
5474171.75
n÷5
4379337.4
n2
479464901575969
n3
1.0498692877295E+22
n4
2.2988659184325E+29
n5
5.0337547470885E+36
2 √n
4679.3895969453
3 √n
279.76462787844
4 √n
68.406064036351
5 √n
29.381616244574
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
-21896686
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 21896687 can be divided by 4 positive divisors.
The sum of these divisors (counting 21896687) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100001110111101111
3
Ternary
1112012110121102
4
Quaternary
1103201313233
5
Quinary
21101143222
6
Senary
2101153315
8
Octal
123416757
10
Decimal
21896687
12
Duodecimal
73bb83b
16
Hexadecimal
14e1def
20
Vigesimal
6gh1e7
36
Base36
d1blb
md5
c55c8349b77f5c0394e5fc8097c38984
sha1
60df7a3c86ca304fd611d57f32d2c5f868276eda
sha256
226736473d6c4af5947df935756ddb9262eb2421003b0ee15ceeda75c10b9946
sha512
b45d25becff5421f6b21ccb739474b42a4a27ee2a5ff84030bcdae872142ad1618030797bd8fe611fd1d6425a7b98ad803aaf9df1f03448554b0a9bd377251e3
ripemd-160
180726ab2eb7cd7ae1f7fe966d406a572a4e7fa4
Diameter
43793374
Circumference
137580942.03431
Area
1.5062834124452E+15
Volume
4.3976821887473E+22
Surface area
6.0251336497809E+15
Circumference
137580942.03431
Perimeter
87586748
Area
479464901575969
Diagonal
30966591.726439
Surface area
2876789409455814
Volume
1.0498692877295E+22
Space diagonal
37926174.401433
Perimeter
65690061
Area
2.076143924939E+14
Altitude
18963087.200716
Surface area
2.076143924939E+14
Volume
1.2372828211883E+21
Height
10322197.242146