21551331 is an odd 8-digits composite number following 21551330
and preceding 21551332 . In scientific notation, it is written as 2.1551331 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 14367552 positive integers (up to 21551331) that are relatively prime to 21551331.
21551331 has 4 divisors, whose sum is 28735112
The reverse of 21551331 is 13315512
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million five hundred fifty-one thousand three hundred thirty-one
Scientific notation
2.1551331 × 10^7
Engineering notation
2.1551331 × 10^6
Prime Factorization
3 × 7183777
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21551331
Product of the distinct prime numbers
The prime factorization of 21551331 is 3 × 7183777.
Since it has a total of 2 prime factors.
1 , 5 , 7 , 70 , 642 , 71 , 7866 , 7127 , 21553 , 23297 , 354637 , 155773 , 8815254 , 6107682 , 32910112 , 19696411 , 502243343 , 984889901 , 3064921101 , 9112130097
n×2
43102662
n×3
64653993
n×4
86205324
n×5
107756655
n÷2
10775665.5
n÷3
7183777
n÷3
5387832.75
n÷5
4310266.2
n2
464459867871561
n3
1.0009728348716E+22
n4
2.1572296886327E+29
n5
4.649117106275E+36
2 √n
4642.3411119822
3 √n
278.28600467759
4 √n
68.134727650312
5 √n
29.288344176195
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
-21551330
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 21551331 can be divided by 4 positive divisors.
The sum of these divisors (counting 21551331) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101100011100011
3
Ternary
1111112220212110
4
Quaternary
1102031203203
5
Quinary
21004120311
6
Senary
2045530403
8
Octal
122154343
10
Decimal
21551331
12
Duodecimal
7273a03
16
Hexadecimal
148d8e3
20
Vigesimal
6edi6b
36
Base36
ctx43
md5
19a2a7444808e6a51ead4c1287079cec
sha1
af61af902d4d0733cbaf5dbea9e63c8c9d531f6f
sha256
23ab657c1ddce0f86d93fffff57feb82492d16bb7415c6569de07da4cb965491
sha512
39400392a8ecba09862cb8337385662adb985c3706bb7b10a030a3372bb04828cae8df8b9f00fbbedac68a967ce7d3016c4759989be1f4747d557c642b16c7d3
ripemd-160
4f43953037c87a36c01ed785393b11e52c6e6a5a
Diameter
43102662
Circumference
135411006.28936
Area
1.4591437087926E+15
Volume
4.1928652059675E+22
Surface area
5.8365748351703E+15
Circumference
135411006.28936
Perimeter
86205324
Area
464459867871561
Diagonal
30478184.587392
Surface area
2786759207229366
Volume
1.0009728348716E+22
Space diagonal
37328000.262734
Perimeter
64653993
Area
2.0111702230757E+14
Altitude
18664000.131367
Surface area
2.0111702230757E+14
Volume
1.1796577988688E+21
Height
10159394.862464