21556938 is an even 8-digits composite number following 21556937
and preceding 21556939 . In scientific notation, it is written as 2.1556938 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 6632880 positive integers (up to 21556938) that are relatively prime to 21556938.
21556938 has 8 divisors, whose sum is 33164640
The reverse of 21556938 is 83965512
Previous prime number is 39
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million five hundred fifty-six thousand nine hundred thirty-eight
Scientific notation
2.1556938 × 10^7
Engineering notation
2.1556938 × 10^6
Prime Factorization
2 × 39 × 276371
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21556938
Product of the distinct prime numbers
The prime factorization of 21556938 is 2 × 39 × 276371.
Since it has a total of 3 prime factors.
5 , 1 , 99 , 89 , 192 , 157 , 5044 , 9447 , 3563 , 91050 , 317452 , 236003 , 2048874 , 3042555 , 13754353 , 99564921 , 843368001 , 903786667 , 5933784166 , 3798231412
n×2
43113876
n×3
64670814
n×4
86227752
n×5
107784690
n÷2
10778469
n÷3
7185646
n÷3
5389234.5
n÷5
4311387.6
n2
464701575935844
n3
1.0017543060951E+22
n4
2.1594755467726E+29
n5
4.6551680474292E+36
2 √n
4642.9449705979
3 √n
278.31013643276
4 √n
68.139158863299
5 √n
29.289868004662
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21556937
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556938 can be divided by 8 positive divisors.
The sum of these divisors (counting 21556938) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001110111011001010
3
Ternary
1111120012120010
4
Quaternary
1102032323022
5
Quinary
21004310223
6
Senary
2050012350
8
Octal
122167312
10
Decimal
21556938
12
Duodecimal
72770b6
16
Hexadecimal
148eeca
20
Vigesimal
6eec6i
36
Base36
cu1fu
md5
7c05157ed391d33996267eb9c33a89f1
sha1
1069590087b8deaa161cff484ff2475169aa67ae
sha256
a46cf4b1432057040a05f4e53f5bf306b6f27d4b3d778938cc4c12fea7171a9b
sha512
4541722654c707235cafc8190370a5de993dfcccc4c4fbe0dd9b76631c5792128482fe56c755fc4b5d36e8a4f2676545634af6e2a1e82b7f851075e4f1a68949
ripemd-160
767de2701a03cabcbe3544ffe70c38d8b6d1f1d1
Diameter
43113876
Circumference
135446236.10938
Area
1.4599030570716E+15
Volume
4.1961386249739E+22
Surface area
5.8396122282866E+15
Circumference
135446236.10938
Perimeter
86227752
Area
464701575935844
Diagonal
30486114.082836
Surface area
2788209455615064
Volume
1.0017543060951E+22
Space diagonal
37337711.871612
Perimeter
64670814
Area
2.0122168496955E+14
Altitude
18668855.935806
Surface area
2.0122168496955E+14
Volume
1.1805787715378E+21
Height
10162038.027612