21542705 is an odd 8-digits composite number following 21542704
and preceding 21542706 . In scientific notation, it is written as 2.1542705 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 17234160 positive integers (up to 21542705) that are relatively prime to 21542705.
21542705 has 4 divisors, whose sum is 25851252
The reverse of 21542705 is 50724512
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred forty-two thousand seven hundred five
Scientific notation
2.1542705 × 10^7
Engineering notation
2.1542705 × 10^6
Prime Factorization
5 × 4308541
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542705
Product of the distinct prime numbers
The prime factorization of 21542705 is 5 × 4308541.
Since it has a total of 2 prime factors.
5 , 5 , 28 , 97 , 273 , 352 , 9033 , 2802 , 16104 , 40444 , 937472 , 380268 , 3083064 , 5663012 , 7090539 , 68148035 , 725432185 , 752752553 , 1979735397 , 6465389408
n×2
43085410
n×3
64628115
n×4
86170820
n×5
107713525
n÷2
10771352.5
n÷3
7180901.6666667
n÷3
5385676.25
n÷5
4308541
n2
464088138717025
n3
9.9977138663799E+21
n4
2.1537780049783E+29
n5
4.6398204196737E+36
2 √n
4641.4119618926
3 √n
278.24887138845
4 √n
68.127908832523
5 √n
29.285999247106
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
-21542704
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 21542705 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542705) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011011100110001
3
Ternary
1111112111000222
4
Quaternary
1102023130301
5
Quinary
21003331310
6
Senary
2045422425
8
Octal
122133461
10
Decimal
21542705
12
Duodecimal
726aa15
16
Hexadecimal
148b731
20
Vigesimal
6ecgf5
36
Base36
ctqgh
md5
9817ad611d7bf52f050ad0dc0e0b6c3b
sha1
11c18a7e3238705567a723f4148dc750bba9f260
sha256
dbb3606b9917d1448d6c9bee127c4662cc8b94bd5cfdde526b959bb3d651ca20
sha512
271e8e8b7f8da70b1dbae8211796e7d6c4b8f93afbaf29980a44dc1487c7f32ece31fa8279e746d5c8b2dc9e1ff260f7d926f1c566de7d246b4faaf84b64653c
ripemd-160
bf5c3081b979e1f7023cbf4f7879eea6133a13e8
Diameter
43085410
Circumference
135356807.5329
Area
1.4579758872116E+15
Volume
4.1878325913749E+22
Surface area
5.8319035488463E+15
Circumference
135356807.5329
Perimeter
86170820
Area
464088138717025
Diagonal
30465985.581203
Surface area
2784528832302150
Volume
9.9977138663799E+21
Space diagonal
37313059.592468
Perimeter
64628115
Area
2.0095605886199E+14
Altitude
18656529.796234
Surface area
2.0095605886199E+14
Volume
1.1782418785467E+21
Height
10155328.527068