21552815 is an odd 8-digits composite number following 21552814
and preceding 21552816 . In scientific notation, it is written as 2.1552815 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 17242248 positive integers (up to 21552815) that are relatively prime to 21552815.
21552815 has 4 divisors, whose sum is 25863384
The reverse of 21552815 is 51825512
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million five hundred fifty-two thousand eight hundred fifteen
Scientific notation
2.1552815 × 10^7
Engineering notation
2.1552815 × 10^6
Prime Factorization
5 × 4310563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21552815
Product of the distinct prime numbers
The prime factorization of 21552815 is 5 × 4310563.
Since it has a total of 2 prime factors.
6 , 6 , 2 , 63 , 22 , 209 , 8031 , 8110 , 88691 , 77744 , 171761 , 213906 , 6941291 , 4898741 , 67084635 , 42249283 , 748305838 , 779158530 , 8010273837 , 9908573105
n×2
43105630
n×3
64658445
n×4
86211260
n×5
107764075
n÷2
10776407.5
n÷3
7184271.6666667
n÷3
5388203.75
n÷5
4310563
n2
464523834424225
n3
1.0011796266436E+22
n4
2.1578239274818E+29
n5
4.650717991159E+36
2 √n
4642.5009423801
3 √n
278.29239201631
4 √n
68.135900539878
5 √n
29.288747517461
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21552814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21552815 can be divided by 4 positive divisors.
The sum of these divisors (counting 21552815) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101111010101111
3
Ternary
1111112222220102
4
Quaternary
1102031322233
5
Quinary
21004142230
6
Senary
2045541315
8
Octal
122157257
10
Decimal
21552815
12
Duodecimal
727483b
16
Hexadecimal
148deaf
20
Vigesimal
6ee20f
36
Base36
cty9b
md5
8e15d2b2e2aba8e631e178f2b1d5835c
sha1
df5836e028fb0c952b35331abd8c989cf7102a1c
sha256
c78254e31b77df28c9ee13d7273fecf7d5465ae4d35e6206ea5b95e05993e151
sha512
398c89ebb4ec948a487eb029d36a253d006a6468f2baf56bb9eede36851c81ea52e090e27b34a2618652b35778b10af10865c496de89b8a495a287c055a85d46
ripemd-160
447dffaf4c162514b14f5378dc10eb591c8159c1
Diameter
43105630
Circumference
135420330.53636
Area
1.4593446656445E+15
Volume
4.1937314133164E+22
Surface area
5.837378662578E+15
Circumference
135420330.53636
Perimeter
86211260
Area
464523834424225
Diagonal
30480283.280318
Surface area
2787143006545350
Volume
1.0011796266436E+22
Space diagonal
37330570.626133
Perimeter
64658445
Area
2.0114472063737E+14
Altitude
18665285.313066
Surface area
2.0114472063737E+14
Volume
1.1799015053092E+21
Height
10160094.426773