40215821 is an odd 8-digits composite number following 40215820
and preceding 40215822 . In scientific notation, it is written as 4.0215821 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 39908700 positive integers (up to 40215821) that are relatively prime to 40215821.
40215821 has 4 divisors, whose sum is 40522944
The reverse of 40215821 is 12851204
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
forty million two hundred fifteen thousand eight hundred twenty-one
Scientific notation
4.0215821 × 10^7
Engineering notation
4.0215821 × 10^6
Prime Factorization
131 × 306991
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
40215821
Product of the distinct prime numbers
The prime factorization of 40215821 is 131 × 306991.
Since it has a total of 2 prime factors.
6 , 7 , 61 , 36 , 759 , 588 , 4403 , 8678 , 92896 , 82994 , 965454 , 66560 , 4529164 , 7263121 , 42735944 , 93431930 , 477151477 , 557892823 , 3786361188 , 2145232879
n×2
80431642
n×3
120647463
n×4
160863284
n×5
201079105
n÷2
20107910.5
n÷3
13405273.666667
n÷3
10053955.25
n÷5
8043164.2
n2
1617312258704041
n3
6.5041540297147E+22
n4
2.6156989421544E+30
n5
1.0519248044757E+38
2 √n
6341.5945155773
3 √n
342.60916760871
4 √n
79.634129087831
5 √n
33.180229669891
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
-40215820
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 40215821 can be divided by 4 positive divisors.
The sum of these divisors (counting 40215821) is 1, the average is 0.25.
Base
System
Value
2
Binary
10011001011010010100001101
3
Ternary
2210200011201212
4
Quaternary
2121122110031
5
Quinary
40243401241
6
Senary
3553544205
8
Octal
231322415
10
Decimal
40215821
12
Duodecimal
11575065
16
Hexadecimal
265a50d
20
Vigesimal
cb6jb1
36
Base36
nxyq5
md5
5f2f036d0315b135cf49b1b90b57dfc6
sha1
412d2be890e55635e32343ff75cb228b0f12866f
sha256
a5f054a1a2cf93ace36efae90f50e4e455060187f9ff90b7da68c128b4328cac
sha512
6305814c9c92da15f519056e6ecec72b598814d1700248304a68359f1ccc2af4b3afa43632a30bf3694aabbc0e8c5e58844ef2153e7dc68153707bb1c921fb50
ripemd-160
4f544c1d60f5b75c3464134430382accf502a06c
Diameter
80431642
Circumference
252683455.62336
Area
5.0809363105053E+15
Volume
2.7244536690091E+23
Surface area
2.0323745242021E+16
Circumference
252683455.62336
Perimeter
160863284
Area
1617312258704041
Diagonal
56873759.480169
Surface area
9703873552224246
Volume
6.5041540297147E+22
Space diagonal
69655845.240095
Perimeter
120647463
Area
7.0031675094484E+14
Altitude
34827922.620048
Surface area
7.0031675094484E+14
Volume
7.6652190338218E+21
Height
18957919.826723