21693921 is an odd 8-digits composite number following 21693920
and preceding 21693922 . In scientific notation, it is written as 2.1693921 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 13423104 positive integers (up to 21693921) that are relatively prime to 21693921.
21693921 has 16 divisors, whose sum is 31051584
The reverse of 21693921 is 12939612
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million six hundred ninety-three thousand nine hundred twenty-one
Scientific notation
2.1693921 × 10^7
Engineering notation
2.1693921 × 10^6
Prime Factorization
3 × 73 × 17 × 5827
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21693921
Product of the distinct prime numbers
The prime factorization of 21693921 is 3 × 73 × 17 × 5827.
Since it has a total of 4 prime factors.
4 , 3 , 95 , 22 , 497 , 871 , 3664 , 6132 , 36401 , 19042 , 878222 , 33659 , 8015214 , 460407 , 86048864 , 19007147 , 610784324 , 308634748 , 9330813566 , 9587812810
n×2
43387842
n×3
65081763
n×4
86775684
n×5
108469605
n÷2
10846960.5
n÷3
7231307
n÷3
5423480.25
n÷5
4338784.2
n2
470626208354241
n3
1.0209727784566E+22
n4
2.2148902798989E+29
n5
4.8049654755795E+36
2 √n
4657.6733462105
3 √n
278.89839699111
4 √n
68.24714899694
5 √n
29.326998087753
1 , 3 , 17 , 51 , 73 , 219 , 1241 , 3723 , 5827 , 17481 , 99059 , 297177 , 425371 , 1276113 , 7231307 , 21693921
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21693920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21693921 can be divided by 16 positive divisors.
The sum of these divisors (counting 21693921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010110000010111100001
3
Ternary
1111211011110120
4
Quaternary
1102300113201
5
Quinary
21023201141
6
Senary
2052550453
8
Octal
122602741
10
Decimal
21693921
12
Duodecimal
7322429
16
Hexadecimal
14b05e1
20
Vigesimal
6fbeg1
36
Base36
cwz4x
md5
6c98b4e4bf521223fb71c1220c3d645a
sha1
5495dfd377b90ba770201a28ac208353ff0ea9de
sha256
124d1a14c346683067c6e982a5af29eed1d0e3ac9c52526cd55d8ae3cdd2a461
sha512
3b0d464ed7290c4720f9034ebc6096f99a25f11b33c9cec1ce80875cbb04ef29d6e1bd9c436f6f6b85add8c721b4ce6ad53091c5b0dd7f9fec6064ed6183489d
ripemd-160
c6bec938488408239ae006fdac66aa642cc0b4a9
Diameter
43387842
Circumference
136306925.68231
Area
1.4785158387525E+15
Volume
4.2766407737527E+22
Surface area
5.91406335501E+15
Circumference
136306925.68231
Perimeter
86775684
Area
470626208354241
Diagonal
30679837.29925
Surface area
2823757250125446
Volume
1.0209727784566E+22
Space diagonal
37574973.387385
Perimeter
65081763
Area
2.0378712606076E+14
Altitude
18787486.693693
Surface area
2.0378712606076E+14
Volume
1.2032279584226E+21
Height
10226612.433084