21371894 is an even 8-digits composite number following 21371893
and preceding 21371895 . In scientific notation, it is written as 2.1371894 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 10678600 positive integers (up to 21371894) that are relatively prime to 21371894.
21371894 has 8 divisors, whose sum is 32079888
The reverse of 21371894 is 49817312
Previous prime number is 1997
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million three hundred seventy-one thousand eight hundred ninety-four
Scientific notation
2.1371894 × 10^7
Engineering notation
2.1371894 × 10^6
Prime Factorization
2 × 1997 × 5351
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21371894
Product of the distinct prime numbers
The prime factorization of 21371894 is 2 × 1997 × 5351.
Since it has a total of 3 prime factors.
8 , 8 , 100 , 11 , 352 , 102 , 605 , 1648 , 28131 , 99788 , 242851 , 149078 , 1568217 , 4633510 , 25957265 , 59268986 , 241034123 , 91361592 , 3757632280 , 3744915370
n×2
42743788
n×3
64115682
n×4
85487576
n×5
106859470
n÷2
10685947
n÷3
7123964.6666667
n÷3
5342973.5
n÷5
4274378.8
n2
456757853147236
n3
9.7617804211303E+21
n4
2.0862773641167E+29
n5
4.4587698680502E+36
2 √n
4622.9745835339
3 √n
277.51151211609
4 √n
67.992459754989
5 √n
29.239409813394
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
-21371893
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 21371894 can be divided by 8 positive divisors.
The sum of these divisors (counting 21371894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100001101111110110
3
Ternary
1111012210201122
4
Quaternary
1101201233312
5
Quinary
20432400034
6
Senary
2042023542
8
Octal
121415766
10
Decimal
21371894
12
Duodecimal
71a7bb2
16
Hexadecimal
1461bf6
20
Vigesimal
6db9ee
36
Base36
cq2nq
md5
67232625e304c3738ab89c3e98205e67
sha1
77d44814ecf27aecbe16088f9a5767f94d97c4fa
sha256
f3325c4e57d622a08fb9b3bd4f2ad2f17edeed2020184024d59e86165fb8f9fa
sha512
b2cfe23618d701f15cf9c40241e201d1e7d4714709a19aac9c90611402af056efe691bec7005d1d09f2f1267ae9d1a96b2aff6d60df23f3f93925421e31328be
ripemd-160
fc8e978275da9e3630ad1b0a6569f3130d1557fc
Diameter
42743788
Circumference
134283570.3674
Area
1.4349471159168E+15
Volume
4.0890050209306E+22
Surface area
5.7397884636672E+15
Circumference
134283570.3674
Perimeter
85487576
Area
456757853147236
Diagonal
30224422.3484
Surface area
2740547118883416
Volume
9.7617804211303E+21
Space diagonal
37017206.261976
Perimeter
64115682
Area
1.9778195210177E+14
Altitude
18508603.130988
Surface area
1.9778195210177E+14
Volume
1.1504368553726E+21
Height
10074807.449467