21554731 is an odd 8-digits composite number following 21554730
and preceding 21554732 . In scientific notation, it is written as 2.1554731 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19595200 positive integers (up to 21554731) that are relatively prime to 21554731.
21554731 has 4 divisors, whose sum is 23514264
The reverse of 21554731 is 13745512
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-four thousand seven hundred thirty-one
Scientific notation
2.1554731 × 10^7
Engineering notation
2.1554731 × 10^6
Prime Factorization
11 × 1959521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21554731
Product of the distinct prime numbers
The prime factorization of 21554731 is 11 × 1959521.
Since it has a total of 2 prime factors.
1 , 1 , 3 , 11 , 257 , 842 , 5354 , 3890 , 87421 , 63685 , 314156 , 652121 , 6390309 , 9421917 , 92165657 , 90924601 , 134456878 , 656091433 , 1267761171 , 9403813743
n×2
43109462
n×3
64664193
n×4
86218924
n×5
107773655
n÷2
10777365.5
n÷3
7184910.3333333
n÷3
5388682.75
n÷5
4310946.2
n2
464606428482361
n3
1.0014466586808E+22
n4
2.1585913338714E+29
n5
4.6527855540528E+36
2 √n
4642.7072920872
3 √n
278.30063830839
4 √n
68.137414774023
5 √n
29.289268240576
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
-21554730
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 21554731 can be divided by 4 positive divisors.
The sum of these divisors (counting 21554731) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110011000101011
3
Ternary
1111120002112101
4
Quaternary
1102032120223
5
Quinary
21004222411
6
Senary
2045554231
8
Octal
122163053
10
Decimal
21554731
12
Duodecimal
7275977
16
Hexadecimal
148e62b
20
Vigesimal
6ee6gb
36
Base36
ctzqj
md5
1315ac6ae13b5ecdf1cbb943e5050d16
sha1
5021b445d4383dd564c90cbb2b3fe9e5c773b029
sha256
3d41e547dd65363b5de7992334501d2bca596127362e0a4faecfdc645f394869
sha512
f1b142d1e347ba1086e59c00bcb50ca73d6e02be2646db1b866f5108584c1e27c709a488b82702b87d0fbe16928d459a1252907e9476630b7d268b0d1bd29f54
ripemd-160
01b1c08ecb0bd3b3695303f89f81088e73621fca
Diameter
43109462
Circumference
135432369.11941
Area
1.4596041425308E+15
Volume
4.1948499544982E+22
Surface area
5.8384165701231E+15
Circumference
135432369.11941
Perimeter
86218924
Area
464606428482361
Diagonal
30482992.913504
Surface area
2787638570894166
Volume
1.0014466586808E+22
Space diagonal
37333889.23548
Perimeter
64664193
Area
2.0118048491364E+14
Altitude
18666944.61774
Surface area
2.0118048491364E+14
Volume
1.180216205583E+21
Height
10160997.637835