20212915 is an odd 8-digits composite number following 20212914
and preceding 20212916 . In scientific notation, it is written as 2.0212915 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 14805504 positive integers (up to 20212915) that are relatively prime to 20212915.
20212915 has 16 divisors, whose sum is 26380512
The reverse of 20212915 is 51921202
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million two hundred twelve thousand nine hundred fifteen
Scientific notation
2.0212915 × 10^7
Engineering notation
2.0212915 × 10^6
Prime Factorization
5 × 37 × 17 × 6427
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20212915
Product of the distinct prime numbers
The prime factorization of 20212915 is 5 × 37 × 17 × 6427.
Since it has a total of 4 prime factors.
1 , 7 , 11 , 55 , 510 , 162 , 8221 , 9083 , 76158 , 6259 , 584679 , 594074 , 8364191 , 8359479 , 92993983 , 78461701 , 189683059 , 337206655 , 5248885548 , 1574295065
n×2
40425830
n×3
60638745
n×4
80851660
n×5
101064575
n÷2
10106457.5
n÷3
6737638.3333333
n÷3
5053228.75
n÷5
4042583
n2
408561932797225
n3
8.258227619866E+21
n4
1.66922852931E+29
n5
3.3739974378519E+36
2 √n
4495.8775561619
3 √n
272.4015973292
4 √n
67.05130540237
5 √n
28.915172660394
1 , 5 , 17 , 37 , 85 , 185 , 629 , 3145 , 6427 , 32135 , 109259 , 237799 , 546295 , 1188995 , 4042583 , 20212915
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
-20212914
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 20212915 can be divided by 16 positive divisors.
The sum of these divisors (counting 20212915) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110110010110011
3
Ternary
1102000220220111
4
Quaternary
1031012302303
5
Quinary
20133303130
6
Senary
2001122151
8
Octal
115066263
10
Decimal
20212915
12
Duodecimal
6929357
16
Hexadecimal
1346cb3
20
Vigesimal
666c5f
36
Base36
c18dv
md5
d995b2f8044f15a2ae9ef856607d160f
sha1
54b77dbcc4189b3231c91f4106041a24cae6f30c
sha256
8311ca093c7454ae9feade33762e40ca00e5e0cd6fdd42efe30617bb5e82536f
sha512
e0dbdbc1d308f29c1a7186201f5c277c10389928138537167d63c5c88ff63289ddacc7e97956f0fbb7884c4d5cce8d2ed7dd694d64c9876153b41501ab1c577f
ripemd-160
e795886e66a7ae55de5322e66e0ec8e7d6aac309
Diameter
40425830
Circumference
127001490.54327
Area
1.2835351666122E+15
Volume
3.4591982962991E+22
Surface area
5.1341406664488E+15
Circumference
127001490.54327
Perimeter
80851660
Area
408561932797225
Diagonal
28585378.528095
Surface area
2451371596783350
Volume
8.258227619866E+21
Space diagonal
35009795.749071
Perimeter
60638745
Area
1.7691250641083E+14
Altitude
17504897.874536
Surface area
1.7691250641083E+14
Volume
9.7324145843155E+20
Height
9528459.5093649