21000975 is an odd 8-digits composite number following 21000974
and preceding 21000976 . In scientific notation, it is written as 2.1000975 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 11200480 positive integers (up to 21000975) that are relatively prime to 21000975.
21000975 has 4 divisors, whose sum is 21281064
The reverse of 21000975 is 57900012
Previous prime number is 75
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million nine hundred seventy-five
Scientific notation
2.1000975 × 10^7
Engineering notation
2.1000975 × 10^6
Prime Factorization
75 × 280013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000975
Product of the distinct prime numbers
The prime factorization of 21000975 is 75 × 280013.
Since it has a total of 2 prime factors.
7 , 7 , 2 , 39 , 465 , 497 , 8558 , 7369 , 53534 , 64827 , 71418 , 571588 , 826525 , 6096055 , 52890237 , 60616416 , 192359127 , 268550232 , 5482131333 , 9992033307
n×2
42001950
n×3
63002925
n×4
84003900
n×5
105004875
n÷2
10500487.5
n÷3
7000325
n÷3
5250243.75
n÷5
4200195
n2
441040950950625
n3
9.2622899848903E+21
n4
1.9451712041543E+29
n5
4.0850491829165E+36
2 √n
4582.6820749426
3 √n
275.89668733564
4 √n
67.695510005779
5 √n
29.137205137987
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
-21000974
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 21000975 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000975) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001100001111
3
Ternary
1110111221220220
4
Quaternary
1100013030033
5
Quinary
20334012400
6
Senary
2030042423
8
Octal
120071417
10
Decimal
21000975
12
Duodecimal
7049413
16
Hexadecimal
140730f
20
Vigesimal
6b528f
36
Base36
ci4gf
md5
723a5c6d3d41f847aad37e50df999451
sha1
bd694b9009e71fde99d45f66fa690b23ffc7c7b7
sha256
88e4a042da5ee3b4db1e0d9bb26be5edcdcd37334665c476fc09ad35913748b7
sha512
e46deb631bcd26bf1c614443c205b7b7f95e53938fc1abc594e42902dcae837471fb0801d70ed6c96f4909fa022d44bd0277bfefecb99a916cb8494b1c87bf6f
ripemd-160
726dfa3f1aceeeef523343aa4af1ab85deb20aeb
Diameter
42001950
Circumference
131953017.55645
Area
1.3855710114387E+15
Volume
3.87977895626E+22
Surface area
5.542284045755E+15
Circumference
131953017.55645
Perimeter
84003900
Area
441040950950625
Diagonal
29699863.668058
Surface area
2646245705703750
Volume
9.2622899848903E+21
Space diagonal
36374755.708484
Perimeter
63002925
Area
1.9097633381624E+14
Altitude
18187377.854242
Surface area
1.9097633381624E+14
Volume
1.0915713429387E+21
Height
9899954.5560194