20215965 is an odd 8-digits composite number following 20215964
and preceding 20215966 . In scientific notation, it is written as 2.0215965 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 8025600 positive integers (up to 20215965) that are relatively prime to 20215965.
20215965 has 16 divisors, whose sum is 22530816
The reverse of 20215965 is 56951202
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred fifteen thousand nine hundred sixty-five
Scientific notation
2.0215965 × 10^7
Engineering notation
2.0215965 × 10^6
Prime Factorization
21 × 55 × 23 × 761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20215965
Product of the distinct prime numbers
The prime factorization of 20215965 is 21 × 55 × 23 × 761.
Since it has a total of 4 prime factors.
9 , 3 , 46 , 28 , 570 , 636 , 9988 , 9269 , 56684 , 8803 , 644448 , 53231 , 4786029 , 7266510 , 55777639 , 60472617 , 458996906 , 371491069 , 5703269386 , 6796846657
n×2
40431930
n×3
60647895
n×4
80863860
n×5
101079825
n÷2
10107982.5
n÷3
6738655
n÷3
5053991.25
n÷5
4043193
n2
408685240881225
n3
8.2619665256714E+21
n4
1.6702362611414E+29
n5
3.3765437796966E+36
2 √n
4496.2167429963
3 √n
272.41529786154
4 √n
67.053834662876
5 √n
28.916045230769
1 , 21 , 23 , 55 , 483 , 761 , 1155 , 1265 , 15981 , 17503 , 26565 , 41855 , 367563 , 878955 , 962665 , 20215965
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20215964
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20215965 can be divided by 16 positive divisors.
The sum of these divisors (counting 20215965) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000111100010011101
3
Ternary
1102001002002110
4
Quaternary
1031013202131
5
Quinary
20133402330
6
Senary
2001144233
8
Octal
115074235
10
Decimal
20215965
12
Duodecimal
692b079
16
Hexadecimal
134789d
20
Vigesimal
666ji5
36
Base36
c1aql
md5
4fff426eb53ed750656f0f281ec6bff0
sha1
142eb66186e2a2fd87e167a260396d3a1cbbd0b9
sha256
e4a62eb4b23d3aa5acc361116486b9d590f8cf4424cf737184e57c8517c68a27
sha512
297214e80528ca0d45670e548d365ab3b07f3d416dcaf1a808641e9dade72d8a396da07d6993c7f9d5c2aa29032696365a9e679517bfb54911e09e0652f28597
ripemd-160
0b36e7f11aef0935153ce2f9dfc52d6ab4956aca
Diameter
40431930
Circumference
127020654.25846
Area
1.283922550383E+15
Volume
3.4607644455005E+22
Surface area
5.1356902015321E+15
Circumference
127020654.25846
Perimeter
80863860
Area
408685240881225
Diagonal
28589691.87946
Surface area
2452111445287350
Volume
8.2619665256714E+21
Space diagonal
35015078.504034
Perimeter
60647895
Area
1.7696590037745E+14
Altitude
17507539.252017
Surface area
1.7696590037745E+14
Volume
9.7368209270642E+20
Height
9529897.2931533