21490725 is an odd 8-digits composite number following 21490724
and preceding 21490726 . In scientific notation, it is written as 2.1490725 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11461680 positive integers (up to 21490725) that are relatively prime to 21490725.
21490725 has 8 divisors, whose sum is 29800576
The reverse of 21490725 is 52709412
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety thousand seven hundred twenty-five
Scientific notation
2.1490725 × 10^7
Engineering notation
2.1490725 × 10^6
Prime Factorization
3 × 25 × 286543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490725
Product of the distinct prime numbers
The prime factorization of 21490725 is 3 × 25 × 286543.
Since it has a total of 3 prime factors.
1 , 2 , 9 , 86 , 497 , 705 , 2825 , 4859 , 20463 , 15713 , 315087 , 9307 , 271347 , 5202230 , 66873041 , 75498499 , 206001256 , 37583385 , 2227255442 , 4670466396
n×2
42981450
n×3
64472175
n×4
85962900
n×5
107453625
n÷2
10745362.5
n÷3
7163575
n÷3
5372681.25
n÷5
4298145
n2
461851261025625
n3
9.9255184416049E+21
n4
2.1330658731096E+29
n5
4.5841132085883E+36
2 √n
4635.8089908882
3 √n
278.02489727503
4 √n
68.086775447867
5 √n
29.271852856388
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
-21490724
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 21490725 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490725) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110000100101
3
Ternary
1111102211201210
4
Quaternary
1101332300211
5
Quinary
21000200400
6
Senary
2044342033
8
Octal
121766045
10
Decimal
21490725
12
Duodecimal
7244919
16
Hexadecimal
147ec25
20
Vigesimal
6e66g5
36
Base36
csmcl
md5
06ad564aee6b9e7c9c7b1109450d93cb
sha1
10493a522bd9693d1c939007143a95374dea92ea
sha256
9f8f9a1b531db6599c781c3ecb873d52b0f3ebf71ed5fef8339adaf3e98593b7
sha512
13270a76c947b09c7501d2e66c909c6fe7e80e5c42d5b40c274098a1ce3c79de20594eee59aed96851aa7a96e44f32a6857a1b0ffcb6c5ff999003ae66ce1f02
ripemd-160
7a4f3e7b494ce42f8e3086a887c71401622e23c1
Diameter
42981450
Circumference
135030207.56064
Area
1.4509485286893E+15
Volume
4.1575914425621E+22
Surface area
5.8037941147571E+15
Circumference
135030207.56064
Perimeter
85962900
Area
461851261025625
Diagonal
30392474.760231
Surface area
2771107566153750
Volume
9.9255184416049E+21
Space diagonal
37223027.591491
Perimeter
64472175
Area
1.9998746240903E+14
Altitude
18611513.795745
Surface area
1.9998746240903E+14
Volume
1.1697335661418E+21
Height
10130824.920077