21551738 is an even 8-digits composite number following 21551737
and preceding 21551739 . In scientific notation, it is written as 2.1551738 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 9423216 positive integers (up to 21551738) that are relatively prime to 21551738.
21551738 has 16 divisors, whose sum is 36647520
The reverse of 21551738 is 83715512
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand seven hundred thirty-eight
Scientific notation
2.1551738 × 10^7
Engineering notation
2.1551738 × 10^6
Prime Factorization
2 × 13 × 19 × 43627
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21551738
Product of the distinct prime numbers
The prime factorization of 21551738 is 2 × 13 × 19 × 43627.
Since it has a total of 4 prime factors.
1 , 4 , 41 , 50 , 422 , 230 , 2117 , 7328 , 77979 , 90986 , 763655 , 706586 , 1991489 , 404189 , 15728930 , 84129921 , 344303154 , 781138602 , 2575622259 , 3639477761
n×2
43103476
n×3
64655214
n×4
86206952
n×5
107758690
n÷2
10775869
n÷3
7183912.6666667
n÷3
5387934.5
n÷5
4310347.6
n2
464477410820644
n3
1.0010295464925E+22
n4
2.1573926516265E+29
n5
4.6495561190979E+36
2 √n
4642.3849474166
3 √n
278.28775649037
4 √n
68.135049331578
5 √n
29.288454798281
1 , 2 , 13 , 19 , 26 , 38 , 247 , 494 , 43627 , 87254 , 567151 , 828913 , 1134302 , 1657826 , 10775869 , 21551738
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
-21551737
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 21551738 can be divided by 16 positive divisors.
The sum of these divisors (counting 21551738) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101101001111010
3
Ternary
1111112221102112
4
Quaternary
1102031221322
5
Quinary
21004123423
6
Senary
2045532322
8
Octal
122155172
10
Decimal
21551738
12
Duodecimal
72740a2
16
Hexadecimal
148da7a
20
Vigesimal
6edj6i
36
Base36
ctxfe
md5
8fbeddd7754342d23699089c1fd2556c
sha1
4675bcd00b3da4004f0515bce3258ab69a313f3f
sha256
fee2f4cd94fc1e57641d2bf7fd1fa9d4f75be5cbdc9ca817bdf43a5c9d4f7cd5
sha512
83e8eb92103f91f3544e46c49be3249a84b70f7ddddc90897bd402fecb0f0c1d60cda042705899b51201f0ebad0f8a4d3441235d2127f864ec3e319fa1f00434
ripemd-160
6205f09382c822a50c5115b8b3ce2d4b627b3cf7
Diameter
43103476
Circumference
135413563.54578
Area
1.4591988215925E+15
Volume
4.1931027590495E+22
Surface area
5.8367952863702E+15
Circumference
135413563.54578
Perimeter
86206952
Area
464477410820644
Diagonal
30478760.172312
Surface area
2786864464923864
Volume
1.0010295464925E+22
Space diagonal
37328705.207413
Perimeter
64655214
Area
2.0112461862735E+14
Altitude
18664352.603706
Surface area
2.0112461862735E+14
Volume
1.1797246341549E+21
Height
10159586.724104