21693 is an odd 5-digits composite number following 21692
and preceding 21694 . In scientific notation, it is written as 2.1693 × 10^4.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 12384 positive integers (up to 21693) that are relatively prime to 21693.
21693 has 4 divisors, whose sum is 22748
The reverse of 21693 is 39612
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 21
Digital Root 3
Name
twenty-one thousand six hundred ninety-three
Scientific notation
2.1693 × 10^4
Engineering notation
2.1693 × 10^3
Prime Factorization
21 × 1033
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21693
Product of the distinct prime numbers
The prime factorization of 21693 is 21 × 1033.
Since it has a total of 2 prime factors.
3 , 2 , 83 , 73 , 450 , 529 , 4075 , 1689 , 18742 , 44489 , 763070 , 97549 , 7498049 , 3020678 , 84369630 , 8640791 , 178210683 , 385791484 , 4790890844 , 9661334152
n×2
43386
n×3
65079
n×4
86772
n×5
108465
n÷2
10846.5
n÷3
7231
n÷3
5423.25
n÷5
4338.6
n2
470586249
n3
10208427499557
n4
221451417747890001
n5
4.803945605205E+21
2 √n
147.285437162
3 √n
27.889445012417
4 √n
12.136121174494
5 √n
7.3665463074625
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
-21692
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 21693 can be divided by 4 positive divisors.
The sum of these divisors (counting 21693) is 1, the average is 0.25.
Base
System
Value
2
Binary
101010010111101
3
Ternary
1002202110
4
Quaternary
11102331
5
Quinary
1143233
6
Senary
244233
8
Octal
52275
10
Decimal
21693
12
Duodecimal
10679
16
Hexadecimal
54bd
20
Vigesimal
2e4d
36
Base36
gql
md5
6f31db0cab7c10ab173107e1f53376b8
sha1
283931bd7ef859a92b1aa99ea6cc90cd66ffb44c
sha256
9cadf7bc1f12b357e06becac63bee5181e6e8f817332a8096b227157b2a06b18
sha512
289a7c1fef45e34f1ab9153bcdc8713d7837d2e7800385fb01de83dac0075898c53c11c918b185bd215506daecb321173792869f0837da6aae77010a9382e845
ripemd-160
ac917e3a3a9877e40caa7eedc13d18cb43ba13e0
Diameter
43386
Circumference
136301.13886865
Area
1478390302.7388
Volume
42760961116416
Surface area
5913561210.9551
Circumference
136301.13886865
Perimeter
86772
Area
470586249
Diagonal
30678.53480856
Surface area
2823517494
Volume
10208427499557
Space diagonal
37573.378168592
Perimeter
65079
Area
203769823.15281
Altitude
18786.689084296
Surface area
203769823.15281
Volume
1203074718364.7
Height
10226.17826952