20215215 is an odd 8-digits composite number following 20215214
and preceding 20215216 . In scientific notation, it is written as 2.0215215 × 10^7.
The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors.
There are 10781424 positive integers (up to 20215215) that are relatively prime to 20215215.
20215215 has 4 divisors, whose sum is 20664488
The reverse of 20215215 is 51251202
Previous prime number is 45
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred fifteen thousand two hundred fifteen
Scientific notation
2.0215215 × 10^7
Engineering notation
2.0215215 × 10^6
Prime Factorization
45 × 449227
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20215215
Product of the distinct prime numbers
The prime factorization of 20215215 is 45 × 449227.
Since it has a total of 2 prime factors.
9 , 4 , 29 , 94 , 204 , 64 , 4383 , 1559 , 23287 , 20102 , 265862 , 633071 , 1192989 , 8108567 , 24140763 , 52048791 , 225960213 , 560441791 , 5122619029 , 6716570273
n×2
40430430
n×3
60645645
n×4
80860860
n×5
101076075
n÷2
10107607.5
n÷3
6738405
n÷3
5053803.75
n÷5
4043043
n2
408654917496225
n3
8.2610470179935E+21
n4
1.6699884159385E+29
n5
3.3759174875705E+36
2 √n
4496.1333387701
3 √n
272.41192900595
4 √n
67.053212740107
5 √n
28.915830674049
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
-20215214
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 20215215 can be divided by 4 positive divisors.
The sum of these divisors (counting 20215215) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111010110101111
3
Ternary
1102001001001200
4
Quaternary
1031013112233
5
Quinary
20133341330
6
Senary
2001140543
8
Octal
115072657
10
Decimal
20215215
12
Duodecimal
692a753
16
Hexadecimal
13475af
20
Vigesimal
666i0f
36
Base36
c1a5r
md5
bb193212e880b0505611de7bd3b685f7
sha1
8960824c13bcd1ca7387f21014ab28bfb049351d
sha256
912a98f5fdb90137dbd01ac9f9bd44cceb1fc9194b9b2ce23e231d7f90975a99
sha512
2055de33379ef59756619d12e82c0aad789c1d7de20958457e37cfb294cbc41c18dee2e094841916bd4dee788c736452a9b919588610a82d19facc0e00ea27af
ripemd-160
0e6b1328ad85ec37266ab20d09a60b785cf9a61c
Diameter
40430430
Circumference
127015941.86948
Area
1.2838272866595E+15
Volume
3.4603792830251E+22
Surface area
5.1353091466379E+15
Circumference
127015941.86948
Perimeter
80860860
Area
408654917496225
Diagonal
28588631.219288
Surface area
2451929504977350
Volume
8.2610470179935E+21
Space diagonal
35013779.465928
Perimeter
60645645
Area
1.7695276996658E+14
Altitude
17506889.732964
Surface area
1.7695276996658E+14
Volume
9.7357372768735E+20
Height
9529543.7397627