21687922 is an even 8-digits composite number following 21687921
and preceding 21687923 . In scientific notation, it is written as 2.1687922 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 10764672 positive integers (up to 21687922) that are relatively prime to 21687922.
21687922 has 8 divisors, whose sum is 32769756
The reverse of 21687922 is 22978612
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million six hundred eighty-seven thousand nine hundred twenty-two
Scientific notation
2.1687922 × 10^7
Engineering notation
2.1687922 × 10^6
Prime Factorization
2 × 137 × 79153
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21687922
Product of the distinct prime numbers
The prime factorization of 21687922 is 2 × 137 × 79153.
Since it has a total of 3 prime factors.
6 , 6 , 41 , 44 , 348 , 942 , 4277 , 3617 , 50289 , 80001 , 167107 , 242779 , 5370921 , 8679637 , 35392454 , 86173900 , 620742039 , 768270266 , 7298386288 , 8663694739
n×2
43375844
n×3
65063766
n×4
86751688
n×5
108439610
n÷2
10843961
n÷3
7229307.3333333
n÷3
5421980.5
n÷5
4337584.4
n2
470365960678084
n3
1.0201260266641E+22
n4
2.2124413696462E+29
n5
4.7983255854459E+36
2 √n
4657.0293106228
3 √n
278.87268678211
4 √n
68.242430427285
5 √n
29.325375954761
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
-21687921
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 21687922 can be divided by 8 positive divisors.
The sum of these divisors (counting 21687922) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101110111001110010
3
Ternary
1111210212020101
4
Quaternary
1102232321302
5
Quinary
21023003142
6
Senary
2052503014
8
Octal
122567162
10
Decimal
21687922
12
Duodecimal
731aa6a
16
Hexadecimal
14aee72
20
Vigesimal
6fajg2
36
Base36
cwuia
md5
2a0c72eb8e929010b493a7489ec0ede7
sha1
4884e8ce339285f31dffe030994e9e499dedac5e
sha256
7bd30d1ff1120be81421632a985f8ba450641660cd628325c434f39952878b8a
sha512
f4dad37b7896981a8e5445ebe7007ed0f57a26e95adfc0c5d9981177b6378a02f8e22d1f0be9acf94fb1baf448e1a0f14dcf7d44c33a34dc2eb297a3ce590fca
ripemd-160
3238cb834f8fd574a3e3638b5d5b7e6f7e907d8e
Diameter
43375844
Circumference
136269232.85366
Area
1.477698246565E+15
Volume
4.2730939081384E+22
Surface area
5.9107929862599E+15
Circumference
136269232.85366
Perimeter
86751688
Area
470365960678084
Diagonal
30671353.43209
Surface area
2822195764068504
Volume
1.0201260266641E+22
Space diagonal
37564582.814591
Perimeter
65063766
Area
2.0367443551135E+14
Altitude
18782291.407295
Surface area
2.0367443551135E+14
Volume
1.2022300518652E+21
Height
10223784.477363