21001825 is an odd 8-digits composite number following 21001824
and preceding 21001826 . In scientific notation, it is written as 2.1001825 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 15508800 positive integers (up to 21001825) that are relatively prime to 21001825.
21001825 has 4 divisors, whose sum is 21066772
The reverse of 21001825 is 52810012
Previous prime number is 325
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million one thousand eight hundred twenty-five
Scientific notation
2.1001825 × 10^7
Engineering notation
2.1001825 × 10^6
Prime Factorization
325 × 64621
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21001825
Product of the distinct prime numbers
The prime factorization of 21001825 is 325 × 64621.
Since it has a total of 2 prime factors.
1 , 7 , 83 , 38 , 579 , 25 , 9390 , 3378 , 45534 , 20057 , 646298 , 396764 , 6028698 , 8584848 , 54310024 , 57184989 , 573229996 , 108884188 , 4446761432 , 2357906859
n×2
42003650
n×3
63005475
n×4
84007300
n×5
105009125
n÷2
10500912.5
n÷3
7000608.3333333
n÷3
5250456.25
n÷5
4200365
n2
441076653330625
n3
9.2634146848355E+21
n4
1.9454861411334E+29
n5
4.085875947601E+36
2 √n
4582.7748144547
3 √n
275.90040952823
4 √n
67.69619497767
5 √n
29.137440995831
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
-21001824
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 21001825 can be divided by 4 positive divisors.
The sum of these divisors (counting 21001825) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111011001100001
3
Ternary
1110112000002101
4
Quaternary
1100013121201
5
Quinary
20334024300
6
Senary
2030050401
8
Octal
120073141
10
Decimal
21001825
12
Duodecimal
7049a01
16
Hexadecimal
1407661
20
Vigesimal
6b54b5
36
Base36
ci541
md5
bb8761523b14b216acb168480d5f1d7c
sha1
661d7bf34fb181a313e3cf542e243466bd6a7801
sha256
d84ba2d1a96dd03b0c74543a34a8cd7fd738ec119d25b31ddffd3325566f5388
sha512
bcc78735ced86d81c770005d3397f0640972bf702b175bac4fba8c93c7d880d1b3938a81382abbb2be12a22cb71e5f29944b66aae041f77494eb8442e8819c49
ripemd-160
58ed5351bd99f34d9d819d1de688096be92f3007
Diameter
42003650
Circumference
131958358.26396
Area
1.3856831737735E+15
Volume
3.8802500694713E+22
Surface area
5.5427326950939E+15
Circumference
131958358.26396
Perimeter
84007300
Area
441076653330625
Diagonal
29701065.749586
Surface area
2646459919983750
Volume
9.2634146848355E+21
Space diagonal
36376227.95167
Perimeter
63005475
Area
1.9099179340027E+14
Altitude
18188113.975835
Surface area
1.9099179340027E+14
Volume
1.0917038900984E+21
Height
9900355.2498621