21551656 is an even 8-digits composite number following 21551655
and preceding 21551657 . In scientific notation, it is written as 2.1551656 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 9236400 positive integers (up to 21551656) that are relatively prime to 21551656.
21551656 has 16 divisors, whose sum is 46182240
The reverse of 21551656 is 65615512
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred fifty-one thousand six hundred fifty-six
Scientific notation
2.1551656 × 10^7
Engineering notation
2.1551656 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 384851
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5387914
Product of the distinct prime numbers
The prime factorization of 21551656 is 2 × 2 × 2 × 7 × 384851.
Since it has a total of 5 prime factors.
3 , 9 , 14 , 78 , 44 , 27 , 3273 , 904 , 37890 , 51833 , 765011 , 252567 , 2625709 , 6896855 , 66303525 , 21332226 , 551516930 , 115926911 , 7762151152 , 6796356620
n×2
43103312
n×3
64654968
n×4
86206624
n×5
107758280
n÷2
10775828
n÷3
7183885.3333333
n÷3
5387914
n÷5
4310331.2
n2
464473876342336
n3
1.0010181203917E+22
n4
2.1573598180448E+29
n5
4.6494676666723E+36
2 √n
4642.3761157407
3 √n
278.28740354706
4 √n
68.134984521468
5 √n
29.288432510919
1 , 2 , 4 , 7 , 8 , 14 , 28 , 56 , 384851 , 769702 , 1539404 , 2693957 , 3078808 , 5387914 , 10775828 , 21551656
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
-21551655
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 21551656 can be divided by 16 positive divisors.
The sum of these divisors (counting 21551656) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101101000101000
3
Ternary
1111112221022111
4
Quaternary
1102031220220
5
Quinary
21004123111
6
Senary
2045532104
8
Octal
122155050
10
Decimal
21551656
12
Duodecimal
7274034
16
Hexadecimal
148da28
20
Vigesimal
6edj2g
36
Base36
ctxd4
md5
d4c13edd3523aa631e9de9c7629104a7
sha1
62e56cd9a20c789324ef1ec379ea582c3cfd010e
sha256
614054c861f35611ce4a7d092f98b8670f0db3b9be4e3d52a931b9a71c2f7ae8
sha512
c225773157b757a6d7948733706a37d4d2c54006257bbd2f874b43844e5abb07d811be19f47946bb50a2e34fe68f86f645048d9750af02833672dc3be3198222
ripemd-160
8b353eba66dcfaa373926084aaae5f34905fbbed
Diameter
43103312
Circumference
135413048.32459
Area
1.4591877177015E+15
Volume
4.1930548975103E+22
Surface area
5.8367508708058E+15
Circumference
135413048.32459
Perimeter
86206624
Area
464473876342336
Diagonal
30478644.206799
Surface area
2786843258054016
Volume
1.0010181203917E+22
Space diagonal
37328563.179247
Perimeter
64654968
Area
2.0112308815335E+14
Altitude
18664281.589623
Surface area
2.0112308815335E+14
Volume
1.1797111683659E+21
Height
10159548.068933