21481570 is an even 8-digits composite number following 21481569
and preceding 21481571 . In scientific notation, it is written as 2.1481570 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 7776000 positive integers (up to 21481570) that are relatively prime to 21481570.
21481570 has 16 divisors, whose sum is 32957568
The reverse of 21481570 is 07518412
Previous prime number is 401
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred eighty-one thousand five hundred seventy
Scientific notation
2.1481570 × 10^7
Engineering notation
2.1481570 × 10^6
Prime Factorization
2 × 55 × 401 × 487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21481570
Product of the distinct prime numbers
The prime factorization of 21481570 is 2 × 55 × 401 × 487.
Since it has a total of 4 prime factors.
3 , 8 , 75 , 65 , 453 , 893 , 7266 , 1816 , 87039 , 19278 , 143947 , 865045 , 8638100 , 9594648 , 74814578 , 12583827 , 98990824 , 8501555 , 5348836385 , 4046891032
n×2
42963140
n×3
64444710
n×4
85926280
n×5
107407850
n÷2
10740785
n÷3
7160523.3333333
n÷3
5370392.5
n÷5
4296314
n2
461457849664900
n3
9.912839099626E+21
n4
2.1294334701735E+29
n5
4.5743574149876E+36
2 √n
4634.8214636596
3 √n
277.98541234291
4 √n
68.079523086312
5 √n
29.269358482757
1 , 2 , 55 , 110 , 401 , 487 , 802 , 974 , 22055 , 26785 , 44110 , 53570 , 195287 , 390574 , 10740785 , 21481570
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21481569
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21481570 can be divided by 16 positive divisors.
The sum of these divisors (counting 21481570) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111100100001100010
3
Ternary
1111102101011201
4
Quaternary
1101330201202
5
Quinary
20444402240
6
Senary
2044231414
8
Octal
121744142
10
Decimal
21481570
12
Duodecimal
723b56a
16
Hexadecimal
147c862
20
Vigesimal
6e53ia
36
Base36
csfaa
md5
d7a421af22430112ccf4f52d63a058a6
sha1
7d886b5e336e89b691610f7bb1f337cfa7ce9cd6
sha256
5d3bdbb981c1f255afce53f5e0849285a4468c962f53c390711be37be4c7cda1
sha512
85fa0694c52d0c8243e9f0a367f836e3f03d731819e326de83c0fb80378e8e95a4757bb4e3401fd47800c5a6eae57d2d57201027079eb0daf1606236425907e1
ripemd-160
90bcb5c4fecd02760e329662469f7ef404a4d105
Diameter
42963140
Circumference
134972684.99915
Area
1.4497125904486E+15
Volume
4.1522803322137E+22
Surface area
5.7988503617944E+15
Circumference
134972684.99915
Perimeter
85926280
Area
461457849664900
Diagonal
30379527.635067
Surface area
2768747097989400
Volume
9.912839099626E+21
Space diagonal
37207170.666347
Perimeter
64444710
Area
1.9981711029277E+14
Altitude
18603585.333174
Surface area
1.9981711029277E+14
Volume
1.1682392913595E+21
Height
10126509.211689