21052281 is an odd 8-digits composite number following 21052280
and preceding 21052282 . In scientific notation, it is written as 2.1052281 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13837040 positive integers (up to 21052281) that are relatively prime to 21052281.
21052281 has 4 divisors, whose sum is 21151332
The reverse of 21052281 is 18225012
Previous prime number is 213
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million fifty-two thousand two hundred eighty-one
Scientific notation
2.1052281 × 10^7
Engineering notation
2.1052281 × 10^6
Prime Factorization
213 × 98837
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21052281
Product of the distinct prime numbers
The prime factorization of 21052281 is 213 × 98837.
Since it has a total of 2 prime factors.
3 , 2 , 3 , 95 , 458 , 402 , 5788 , 5531 , 9127 , 4591 , 393800 , 57290 , 3556268 , 7028656 , 21569120 , 57560533 , 959566666 , 607224908 , 2351758212 , 5420246170
n×2
42104562
n×3
63156843
n×4
84209124
n×5
105261405
n÷2
10526140.5
n÷3
7017427
n÷3
5263070.25
n÷5
4210456.2
n2
443198535302961
n3
9.3303401039864E+21
n4
1.9642494169469E+29
n5
4.1351930679652E+36
2 √n
4588.2764737971
3 √n
276.12117919703
4 √n
67.736817712357
5 √n
29.151427856099
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
-21052280
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 21052281 can be divided by 4 positive divisors.
The sum of these divisors (counting 21052281) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010011101101111001
3
Ternary
1110121120022010
4
Quaternary
1100103231321
5
Quinary
20342133111
6
Senary
2031120133
8
Octal
120235571
10
Decimal
21052281
12
Duodecimal
7073049
16
Hexadecimal
1413b79
20
Vigesimal
6bbae1
36
Base36
cj81l
md5
b474d7948eecb9d9698a8a63cf357780
sha1
3575ac44d0ffb3252685f5cdf854d54d312084a8
sha256
567d5478759eb3be6aad1bf9778739ebf155270ceff6e7f3c86489a3b7e3ecc5
sha512
c4648a61c487637010088b10e1c0dd4cd19efd11849e7f7555dda5d05b62e9f953f53430200e74653a5c1a653ee9885c9486750f088c3b51f066d4b641d4ff1c
ripemd-160
ee0d9a8a83d39018a47924bfe4af343a1a0d3f3b
Diameter
42104562
Circumference
132275382.66182
Area
1.3923492625895E+15
Volume
3.9082837234904E+22
Surface area
5.5693970503582E+15
Circumference
132275382.66182
Perimeter
84209124
Area
443198535302961
Diagonal
29772421.309089
Surface area
2659191211817766
Volume
9.3303401039864E+21
Space diagonal
36463620.307217
Perimeter
63156843
Area
1.9191059524621E+14
Altitude
18231810.153608
Surface area
1.9191059524621E+14
Volume
1.0995911263843E+21
Height
9924140.4363631