21550161 is an odd 8-digits composite number following 21550160
and preceding 21550162 . In scientific notation, it is written as 2.1550161 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 13140288 positive integers (up to 21550161) that are relatively prime to 21550161.
21550161 has 16 divisors, whose sum is 31291200
The reverse of 21550161 is 16105512
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million five hundred fifty thousand one hundred sixty-one
Scientific notation
2.1550161 × 10^7
Engineering notation
2.1550161 × 10^6
Prime Factorization
3 × 19 × 29 × 13037
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21550161
Product of the distinct prime numbers
The prime factorization of 21550161 is 3 × 19 × 29 × 13037.
Since it has a total of 4 prime factors.
7 , 2 , 60 , 40 , 247 , 106 , 6213 , 875 , 28014 , 18896 , 269845 , 704453 , 3944364 , 8185812 , 65700105 , 78482679 , 772191255 , 171035492 , 6098497174 , 3033745979
n×2
43100322
n×3
64650483
n×4
86200644
n×5
107750805
n÷2
10775080.5
n÷3
7183387
n÷3
5387540.25
n÷5
4310032.2
n2
464409439125921
n3
1.0008098183083E+22
n4
2.1567612714925E+29
n5
4.6478552639229E+36
2 √n
4642.215096266
3 √n
278.28096863106
4 √n
68.133802890093
5 √n
29.288026162362
1 , 3 , 19 , 29 , 57 , 87 , 551 , 1653 , 13037 , 39111 , 247703 , 378073 , 743109 , 1134219 , 7183387 , 21550161
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
-21550160
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 21550161 can be divided by 16 positive divisors.
The sum of these divisors (counting 21550161) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101010001010001
3
Ternary
1111112212021010
4
Quaternary
1102031101101
5
Quinary
21004101121
6
Senary
2045521133
8
Octal
122152121
10
Decimal
21550161
12
Duodecimal
72731a9
16
Hexadecimal
148d451
20
Vigesimal
6edf81
36
Base36
ctw7l
md5
c8efbb0b12358487d128e8db3da49e48
sha1
f94a56d759cc85fa6e739c12fdeb5a3b3604cf1a
sha256
b5d010ef958faa2524f1a5d1762705af230292a7635080aed1e0a5ae551792ad
sha512
1c1c1ceb6100ba776256e684508f2b6958abc2f5a8b0005d9a33976a341b82e3d2d25016cdac387625a109544c5e94645afbbb47193962d4103a1d30b4508579
ripemd-160
005c98e546f84cc19454ff61343f857875818771
Diameter
43100322
Circumference
135403654.96255
Area
1.4589852822157E+15
Volume
4.192182363784E+22
Surface area
5.835941128863E+15
Circumference
135403654.96255
Perimeter
86200644
Area
464409439125921
Diagonal
30476529.957524
Surface area
2786456634755526
Volume
1.0008098183083E+22
Space diagonal
37325973.763289
Perimeter
64650483
Area
2.0109518602017E+14
Altitude
18662986.881645
Surface area
2.0109518602017E+14
Volume
1.1794656820065E+21
Height
10158843.319175