21556856 is an even 8-digits composite number following 21556855
and preceding 21556857 . In scientific notation, it is written as 2.1556856 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 8 positive divisors.
There are 10778424 positive integers (up to 21556856) that are relatively prime to 21556856.
21556856 has 8 divisors, whose sum is 40419120
The reverse of 21556856 is 65865512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million five hundred fifty-six thousand eight hundred fifty-six
Scientific notation
2.1556856 × 10^7
Engineering notation
2.1556856 × 10^6
Prime Factorization
2 × 2 × 2 × 2694607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5389214
Product of the distinct prime numbers
The prime factorization of 21556856 is 2 × 2 × 2 × 2694607.
Since it has a total of 4 prime factors.
9 , 8 , 10 , 74 , 729 , 661 , 9111 , 9575 , 89415 , 18321 , 861839 , 463874 , 5372861 , 3793001 , 36875304 , 21713730 , 659759909 , 883538871 , 4868540851 , 8623462435
n×2
43113712
n×3
64670568
n×4
86227424
n×5
107784280
n÷2
10778428
n÷3
7185618.6666667
n÷3
5389214
n÷5
4311371.2
n2
464698040604736
n3
1.0017428744798E+22
n4
2.1594426894188E+29
n5
4.6550795096054E+36
2 √n
4642.9361399873
3 √n
278.30978354621
4 √n
68.139094064915
5 √n
29.289845721601
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21556855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556856 can be divided by 8 positive divisors.
The sum of these divisors (counting 21556856) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001110111001111000
3
Ternary
1111120012110002
4
Quaternary
1102032321320
5
Quinary
21004304411
6
Senary
2050012132
8
Octal
122167170
10
Decimal
21556856
12
Duodecimal
7277048
16
Hexadecimal
148ee78
20
Vigesimal
6eec2g
36
Base36
cu1dk
md5
db7f8e8e0de53704688dc9659bf11593
sha1
7b0fe2969697ae8ba3cef5a85e475fa76228e169
sha256
0a476270ba55d9dabd9476c6d50fabb19471cdb01fe0a7c299ed3c83d3df4e54
sha512
7d7d9c8b31eb4b63e139aecb68602ac03b5a9ac9a8671dd1dba658df371b383a237ef73b7e4581486c8fdac1affc780636cf10f8b070c037a6f9c0282b779f1d
ripemd-160
5ebf06d39284302e7f5e43daa249826016cfd8bf
Diameter
43113712
Circumference
135445720.88819
Area
1.4598919505014E+15
Volume
4.1960907403357E+22
Surface area
5.8395678020056E+15
Circumference
135445720.88819
Perimeter
86227424
Area
464698040604736
Diagonal
30485998.117324
Surface area
2788188243628416
Volume
1.0017428744798E+22
Space diagonal
37337569.843446
Perimeter
64670568
Area
2.0122015412628E+14
Altitude
18668784.921723
Surface area
2.0122015412628E+14
Volume
1.18056529925E+21
Height
10161999.372441