21131893 is an odd 8-digits composite number following 21131892
and preceding 21131894 . In scientific notation, it is written as 2.1131893 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20795808 positive integers (up to 21131893) that are relatively prime to 21131893.
21131893 has 8 divisors, whose sum is 21470400
The reverse of 21131893 is 39813112
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred thirty-one thousand eight hundred ninety-three
Scientific notation
2.1131893 × 10^7
Engineering notation
2.1131893 × 10^6
Prime Factorization
283 × 89 × 839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131893
Product of the distinct prime numbers
The prime factorization of 21131893 is 283 × 89 × 839.
Since it has a total of 3 prime factors.
6 , 1 , 48 , 80 , 586 , 905 , 305 , 7557 , 72417 , 6083 , 847547 , 315372 , 4907713 , 7055587 , 1427562 , 63090089 , 804767507 , 686268685 , 5885731524 , 7643083525
n×2
42263786
n×3
63395679
n×4
84527572
n×5
105659465
n÷2
10565946.5
n÷3
7043964.3333333
n÷3
5282973.25
n÷5
4226378.6
n2
446556901763449
n3
9.4365926664767E+21
n4
1.9941306651257E+29
n5
4.2139755843455E+36
2 √n
4596.9438760986
3 √n
276.46880435299
4 √n
67.800766043597
5 √n
29.173442580756
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
-21131892
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 21131893 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131893) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111001001110101
3
Ternary
1110202121111201
4
Quaternary
1100213021311
5
Quinary
20402210033
6
Senary
2032532501
8
Octal
120471165
10
Decimal
21131893
12
Duodecimal
70b1131
16
Hexadecimal
1427275
20
Vigesimal
6c19ed
36
Base36
ckxh1
md5
1292c1241d3282164a32703cde2a7a96
sha1
34eebd169f2444061fa47f1d8960bf7c0f84c676
sha256
ce3ec0f03a0a8d1fee15870bdb376beb8f08033c647abdb27ec44751c8aebc3e
sha512
84f4be6c47a310f9ad2fd78e624e792d2e492a8c3ec23cba99978db881e3f75db49b72b7c4144f5bbfebcbec24e076298edb6f3f32dc6c5ff14f8a6687a81878
ripemd-160
d484d8f0bd82d748e860773c2d6987614f71feb8
Diameter
42263786
Circumference
132775599.61049
Area
1.4028998819899E+15
Volume
3.9527906927897E+22
Surface area
5.6115995279595E+15
Circumference
132775599.61049
Perimeter
84527572
Area
446556901763449
Diagonal
29885009.679217
Surface area
2679341410580694
Volume
9.4365926664767E+21
Space diagonal
36601512.336109
Perimeter
63395679
Area
1.9336481058121E+14
Altitude
18300756.168055
Surface area
1.9336481058121E+14
Volume
1.1121131109602E+21
Height
9961669.8930724