21556908 is an even 8-digits composite number following 21556907
and preceding 21556909 . In scientific notation, it is written as 2.1556908 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 7185600 positive integers (up to 21556908) that are relatively prime to 21556908.
21556908 has 12 divisors, whose sum is 39121992
The reverse of 21556908 is 80965512
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million five hundred fifty-six thousand nine hundred eight
Scientific notation
2.1556908 × 10^7
Engineering notation
2.1556908 × 10^6
Prime Factorization
2 × 2 × 27 × 199601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10778454
Product of the distinct prime numbers
The prime factorization of 21556908 is 2 × 2 × 27 × 199601.
Since it has a total of 4 prime factors.
9 , 8 , 9 , 35 , 723 , 378 , 6491 , 4555 , 81731 , 37082 , 115290 , 726731 , 2204205 , 9807484 , 58833328 , 21162180 , 912498915 , 52470605 , 2968435500 , 1526356770
n×2
43113816
n×3
64670724
n×4
86227632
n×5
107784540
n÷2
10778454
n÷3
7185636
n÷3
5389227
n÷5
4311381.6
n2
464700282520464
n3
1.0017501237868E+22
n4
2.159463525746E+29
n5
4.6551356553862E+36
2 √n
4642.9417398886
3 √n
278.31000732803
4 √n
68.139135156594
5 √n
29.289859852331
1 , 2 , 4 , 27 , 54 , 108 , 199601 , 399202 , 798404 , 5389227 , 10778454 , 21556908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21556907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556908 can be divided by 12 positive divisors.
The sum of these divisors (counting 21556908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001110111010101100
3
Ternary
1111120012112000
4
Quaternary
1102032322230
5
Quinary
21004310113
6
Senary
2050012300
8
Octal
122167254
10
Decimal
21556908
12
Duodecimal
7277090
16
Hexadecimal
148eeac
20
Vigesimal
6eec58
36
Base36
cu1f0
md5
bf2350aefb6c5c953114711e89e0c1c4
sha1
667ab939ad8a1d1557cb3b8f4ce9862b5febd05f
sha256
b34a611608d49495b0e54fdc1e25d8c82d83bdc628626d2002430f5639480798
sha512
770ea9f14fd1eaf179f3c972d57defe93ae8cbc8637be5218f569db24a8b23ca9340212ed280cf586385c97550d08b6fe68983390b6ee708e4084df8f406fd41
ripemd-160
8431bb27eba877101a1bc3d13c5ecda44ec43cb2
Diameter
43113816
Circumference
135446047.61382
Area
1.4598989936874E+15
Volume
4.1961211061616E+22
Surface area
5.8395959747496E+15
Circumference
135446047.61382
Perimeter
86227632
Area
464700282520464
Diagonal
30486071.656429
Surface area
2788201695122784
Volume
1.0017501237868E+22
Space diagonal
37337659.910088
Perimeter
64670724
Area
2.0122112490426E+14
Altitude
18668829.955044
Surface area
2.0122112490426E+14
Volume
1.1805738426401E+21
Height
10162023.885476