20971815 is an odd 8-digits composite number following 20971814
and preceding 20971816 . In scientific notation, it is written as 2.0971815 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 11184960 positive integers (up to 20971815) that are relatively prime to 20971815.
20971815 has 8 divisors, whose sum is 33554928
The reverse of 20971815 is 51817902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred seventy-one thousand eight hundred fifteen
Scientific notation
2.0971815 × 10^7
Engineering notation
2.0971815 × 10^6
Prime Factorization
3 × 5 × 1398121
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20971815
Product of the distinct prime numbers
The prime factorization of 20971815 is 3 × 5 × 1398121.
Since it has a total of 3 prime factors.
3 , 8 , 1 , 34 , 458 , 99 , 3838 , 7293 , 51702 , 75860 , 750316 , 291812 , 3069114 , 2953503 , 89414207 , 93981888 , 697564996 , 291034234 , 1345323198 , 3885750852
n×2
41943630
n×3
62915445
n×4
83887260
n×5
104859075
n÷2
10485907.5
n÷3
6990605
n÷3
5242953.75
n÷5
4194363
n2
439817024394225
n3
9.2237612694462E+21
n4
1.9343901494699E+29
n5
4.0567672352505E+36
2 √n
4579.4994267933
3 √n
275.76893336455
4 √n
67.671998838466
5 √n
29.129109197791
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20971814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20971815 can be divided by 8 positive divisors.
The sum of these divisors (counting 20971815) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000000000100100111
3
Ternary
1110110110220220
4
Quaternary
1100000010213
5
Quinary
20332044230
6
Senary
2025255423
8
Octal
120000447
10
Decimal
20971815
12
Duodecimal
7034573
16
Hexadecimal
1400127
20
Vigesimal
6b19af
36
Base36
chhyf
md5
dc3c0474d9379e1350bc4cc055710f8f
sha1
373972511e2c8ae206be07b713c231f65d73f57d
sha256
b1348c1bcaf00c669c24c15d3bbf33f6b765ef5dda881973f9b8c2a1d3ffb349
sha512
c66a1f85f683279c9075d589099bea32f89383bd30545ea58b6d489d96e22963dbbefe89ad18575d9b8f8f88796d2fb3700fbc9c45ee290239419777d453acaa
ripemd-160
c170b2aad621668ef3ab3e8383a150292418383e
Diameter
41943630
Circumference
131769799.87289
Area
1.3817259327606E+15
Volume
3.8636400856744E+22
Surface area
5.5269037310425E+15
Circumference
131769799.87289
Perimeter
83887260
Area
439817024394225
Diagonal
29658625.20058
Surface area
2638902146365350
Volume
9.2237612694462E+21
Space diagonal
36324249.106935
Perimeter
62915445
Area
1.9044635807114E+14
Altitude
18162124.553468
Surface area
1.9044635807114E+14
Volume
1.0870306902785E+21
Height
9886208.4001932