21551485 is an odd 8-digits composite number following 21551484
and preceding 21551486 . In scientific notation, it is written as 2.1551485 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17150160 positive integers (up to 21551485) that are relatively prime to 21551485.
21551485 has 8 divisors, whose sum is 25998336
The reverse of 21551485 is 58415512
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred fifty-one thousand four hundred eighty-five
Scientific notation
2.1551485 × 10^7
Engineering notation
2.1551485 × 10^6
Prime Factorization
5 × 191 × 22567
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551485
Product of the distinct prime numbers
The prime factorization of 21551485 is 5 × 191 × 22567.
Since it has a total of 3 prime factors.
7 , 6 , 42 , 66 , 970 , 94 , 8755 , 291 , 42557 , 40965 , 338807 , 187097 , 8541299 , 7780849 , 90335855 , 7375165 , 474525618 , 555997998 , 2984155311 , 8676047000
n×2
43102970
n×3
64654455
n×4
86205940
n×5
107757425
n÷2
10775742.5
n÷3
7183828.3333333
n÷3
5387871.25
n÷5
4310297
n2
464466505705225
n3
1.0009942930709E+22
n4
2.1572913492202E+29
n5
4.6492832153349E+36
2 √n
4642.3576984114
3 √n
278.28666752827
4 √n
68.134849368084
5 √n
29.288386033397
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
-21551484
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 21551485 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551485) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100101111101
3
Ternary
1111112221002011
4
Quaternary
1102031211331
5
Quinary
21004121420
6
Senary
2045531221
8
Octal
122154575
10
Decimal
21551485
12
Duodecimal
7273b11
16
Hexadecimal
148d97d
20
Vigesimal
6edie5
36
Base36
ctx8d
md5
2bd0c36ccead65b9edc57909d2e841d0
sha1
8c388f3d2fe85421bd367601a4ab7663fe25d289
sha256
781e72d6504c7aad1e9e020c091db153d98ad913bc39b93b26d69e2f5d16317a
sha512
8c48f6afc4517193dd2f9be310076cbb9f06888ac00ae74fe08685937b33e7fd889ec6bd3a956323bf73799a3949a269cfed5084ca2dbdd34b194eef646fc844
ripemd-160
ce3d947cc601336cfcb0b3bd636a1c84ef26501f
Diameter
43102970
Circumference
135411973.8999
Area
1.4591645621621E+15
Volume
4.1929550898623E+22
Surface area
5.8366582486482E+15
Circumference
135411973.8999
Perimeter
86205940
Area
464466505705225
Diagonal
30478402.37628
Surface area
2786799034231350
Volume
1.0009942930709E+22
Space diagonal
37328266.998559
Perimeter
64654455
Area
2.0111989657386E+14
Altitude
18664133.499279
Surface area
2.0111989657386E+14
Volume
1.1796830875991E+21
Height
10159467.45876