21551031 is an odd 8-digits composite number following 21551030
and preceding 21551032 . In scientific notation, it is written as 2.1551031 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13871760 positive integers (up to 21551031) that are relatively prime to 21551031.
21551031 has 8 divisors, whose sum is 29065344
The reverse of 21551031 is 13015512
Previous prime number is 87
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million five hundred fifty-one thousand thirty-one
Scientific notation
2.1551031 × 10^7
Engineering notation
2.1551031 × 10^6
Prime Factorization
3 × 87 × 82571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551031
Product of the distinct prime numbers
The prime factorization of 21551031 is 3 × 87 × 82571.
Since it has a total of 3 prime factors.
4 , 9 , 71 , 14 , 659 , 196 , 2557 , 7585 , 89986 , 49964 , 884349 , 731952 , 9485802 , 3776916 , 1014359 , 72327372 , 635796471 , 900119337 , 7720292305 , 5253491592
n×2
43102062
n×3
64653093
n×4
86204124
n×5
107755155
n÷2
10775515.5
n÷3
7183677
n÷3
5387757.75
n÷5
4310206.2
n2
464446937162961
n3
1.0009310340654E+22
n4
2.1571095744006E+29
n5
4.6487935308303E+36
2 √n
4642.3088005862
3 √n
278.28471340099
4 √n
68.134490535897
5 √n
29.288262635503
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
-21551030
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 21551031 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551031) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101011110110111
3
Ternary
1111112220110100
4
Quaternary
1102031132313
5
Quinary
21004113111
6
Senary
2045525143
8
Octal
122153667
10
Decimal
21551031
12
Duodecimal
72737b3
16
Hexadecimal
148d7b7
20
Vigesimal
6edhbb
36
Base36
ctwvr
md5
bb97b9b07171e8d5b36bd1476b35c1e9
sha1
5c26b62204e072813892f639b613a90b304ba9b6
sha256
6daaaea47965149e9d073f3174b725f9df8773c6b30f660c1bad614850cf2c25
sha512
273ede4232f5256cb234bf88a706615d27174f3c4d344ad485ec1916264ca15607ecdf08256323e5d807984a908c52de0e4f66ea5b581adb6b6d55a0ab7d1ff6
ripemd-160
ff1af4c14b43f611a6e6e6e70b48cbf90e140b29
Diameter
43102062
Circumference
135409121.33377
Area
1.4591030857734E+15
Volume
4.1926901111599E+22
Surface area
5.8364123430938E+15
Circumference
135409121.33377
Perimeter
86204124
Area
464446937162961
Diagonal
30477760.323323
Surface area
2786681622977766
Volume
1.0009310340654E+22
Space diagonal
37327480.647492
Perimeter
64653093
Area
2.011114231465E+14
Altitude
18663740.323746
Surface area
2.011114231465E+14
Volume
1.1796085361462E+21
Height
10159253.441108