21000925 is an odd 8-digits composite number following 21000924
and preceding 21000926 . In scientific notation, it is written as 2.1000925 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 15273200 positive integers (up to 21000925) that are relatively prime to 21000925.
21000925 has 8 divisors, whose sum is 25659648
The reverse of 21000925 is 52900012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million nine hundred twenty-five
Scientific notation
2.1000925 × 10^7
Engineering notation
2.1000925 × 10^6
Prime Factorization
55 × 5 × 76367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000925
Product of the distinct prime numbers
The prime factorization of 21000925 is 55 × 5 × 76367.
Since it has a total of 3 prime factors.
9 , 2 , 20 , 62 , 189 , 216 , 4745 , 9743 , 64000 , 69498 , 141941 , 446141 , 3947829 , 4232885 , 27409307 , 89804436 , 621481128 , 907620074 , 7037110285 , 5352159988
n×2
42001850
n×3
63002775
n×4
84003700
n×5
105004625
n÷2
10500462.5
n÷3
7000308.3333333
n÷3
5250231.25
n÷5
4200185
n2
441038850855625
n3
9.2622238289052E+21
n4
1.9451526796405E+29
n5
4.0850005538679E+36
2 √n
4582.6766196187
3 √n
275.89646838001
4 √n
67.695469712668
5 √n
29.137191263759
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
-21000924
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 21000925 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000925) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001011011101
3
Ternary
1110111221212001
4
Quaternary
1100013023131
5
Quinary
20334012200
6
Senary
2030042301
8
Octal
120071335
10
Decimal
21000925
12
Duodecimal
7049391
16
Hexadecimal
14072dd
20
Vigesimal
6b5265
36
Base36
ci4f1
md5
0f807be4839be2d96aefdf1fddbc2899
sha1
9f0a6222937f1e2949efebf648d51ba8b6321e66
sha256
b13b40f6dc66f97107854e758473e69bcd81ea8c90cc3a4257286818ab75961e
sha512
b4ac8c86f0c82c6873134c21b7e0e238a6b1bc9c0364dc91bd10cfe367114040ec9f5a064043efab70ba15d23a431153a060a2034e47d0951e66aba71d43793f
ripemd-160
5874f591432c11b711656860549cb29831f34bd7
Diameter
42001850
Circumference
131952703.39718
Area
1.3855644137957E+15
Volume
3.8797512449057E+22
Surface area
5.5422576551829E+15
Circumference
131952703.39718
Perimeter
84003700
Area
441038850855625
Diagonal
29699792.95738
Surface area
2646233105133750
Volume
9.2622238289052E+21
Space diagonal
36374669.105943
Perimeter
63002775
Area
1.9097542444843E+14
Altitude
18187334.552972
Surface area
1.9097542444843E+14
Volume
1.0915635463811E+21
Height
9899930.9857934