21557031 is an odd 8-digits composite number following 21557030
and preceding 21557032 . In scientific notation, it is written as 2.1557031 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 14371352 positive integers (up to 21557031) that are relatively prime to 21557031.
21557031 has 4 divisors, whose sum is 28742712
The reverse of 21557031 is 13075512
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million five hundred fifty-seven thousand thirty-one
Scientific notation
2.1557031 × 10^7
Engineering notation
2.1557031 × 10^6
Prime Factorization
3 × 7185677
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21557031
Product of the distinct prime numbers
The prime factorization of 21557031 is 3 × 7185677.
Since it has a total of 2 prime factors.
6 , 4 , 11 , 3 , 182 , 8 , 7524 , 4882 , 14280 , 13857 , 860050 , 152001 , 3481731 , 4434458 , 75252274 , 8214048 , 801255676 , 187664279 , 4996649341 , 2881332497
n×2
43114062
n×3
64671093
n×4
86228124
n×5
107785155
n÷2
10778515.5
n÷3
7185677
n÷3
5389257.75
n÷5
4311406.2
n2
464705585534961
n3
1.001767271325E+22
n4
2.1595128122739E+29
n5
4.6552684639086E+36
2 √n
4642.9549857822
3 √n
278.31053665666
4 √n
68.139232353925
5 √n
29.289893276832
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
-21557030
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 21557031 can be divided by 4 positive divisors.
The sum of these divisors (counting 21557031) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110111100100111
3
Ternary
1111120012200120
4
Quaternary
1102032330213
5
Quinary
21004311111
6
Senary
2050013023
8
Octal
122167447
10
Decimal
21557031
12
Duodecimal
7277173
16
Hexadecimal
148ef27
20
Vigesimal
6eecbb
36
Base36
cu1if
md5
baed03403774ca981e5edde3f9861843
sha1
485765b1c34656f408f6b098f7bc881a0a9f5e04
sha256
c6b9950379233aa4d4854698d575e19b98b862ced9dd1ba33466198d27488e73
sha512
010f750b35f510c9fa37fbc680d73ea126b6e547757337d845937cc06cfdf59e02b091a3788f96692cc8367e6c4b2c75e508706736cbad0f9897ffe254a08d1d
ripemd-160
49a361844f99835c6918dacc5931f4e9a9ab3def
Diameter
43114062
Circumference
135446820.44561
Area
1.4599156535988E+15
Volume
4.1961929336019E+22
Surface area
5.8396626143951E+15
Circumference
135446820.44561
Perimeter
86228124
Area
464705585534961
Diagonal
30486245.604697
Surface area
2788233513209766
Volume
1.001767271325E+22
Space diagonal
37337872.952337
Perimeter
64671093
Area
2.012234211769E+14
Altitude
18668936.476169
Surface area
2.012234211769E+14
Volume
1.1805940512078E+21
Height
10162081.868232