20971247 is an odd 8-digits composite number following 20971246
and preceding 20971248 . In scientific notation, it is written as 2.0971247 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19064760 positive integers (up to 20971247) that are relatively prime to 20971247.
20971247 has 4 divisors, whose sum is 22877736
The reverse of 20971247 is 74217902
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred seventy-one thousand two hundred forty-seven
Scientific notation
2.0971247 × 10^7
Engineering notation
2.0971247 × 10^6
Prime Factorization
11 × 1906477
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20971247
Product of the distinct prime numbers
The prime factorization of 20971247 is 11 × 1906477.
Since it has a total of 2 prime factors.
9 , 2 , 54 , 32 , 243 , 368 , 5224 , 1752 , 9531 , 10982 , 187515 , 817324 , 704843 , 4451263 , 42801751 , 26240242 , 534309633 , 77148054 , 9529911005 , 5843965586
n×2
41942494
n×3
62913741
n×4
83884988
n×5
104856235
n÷2
10485623.5
n÷3
6990415.6666667
n÷3
5242811.75
n÷5
4194249.4
n2
439793200735009
n3
9.2230118415345E+21
n4
1.9341805941274E+29
n5
4.0562178982053E+36
2 √n
4579.4374108617
3 √n
275.76644370294
4 √n
67.671540627222
5 √n
29.1289514097
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
-20971246
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 20971247 can be divided by 4 positive divisors.
The sum of these divisors (counting 20971247) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111111111011101111
3
Ternary
1110110110010212
4
Quaternary
1033333323233
5
Quinary
20332034442
6
Senary
2025253035
8
Octal
117777357
10
Decimal
20971247
12
Duodecimal
703417b
16
Hexadecimal
13ffeef
20
Vigesimal
6b1827
36
Base36
chhin
md5
eca2f80a940d71cad2f0d7fe0a1b6650
sha1
3edcc02fb7b2f08a2040e64638f47ad3603b76d6
sha256
f51840c2cde713faa6f21952c9297bc28723a38c105fe584c983d76631f5ebef
sha512
605282f7af98b724cd3d4016c09b06b3c34ec874d53e76fedf0b708c22a4e1837c4ea3d2ec364ccf36e1a806e94e04ff10b1a0799f5827e3b19e43e574c7f0a5
ripemd-160
2dcc86e77c8bf3f13547326b620a11b387239e02
Diameter
41942494
Circumference
131766231.02363
Area
1.3816510885278E+15
Volume
3.8633261660448E+22
Surface area
5.5266043541114E+15
Circumference
131766231.02363
Perimeter
83884988
Area
439793200735009
Diagonal
29657821.927276
Surface area
2638759204410054
Volume
9.2230118415345E+21
Space diagonal
36323265.302076
Perimeter
62913741
Area
1.9043604212409E+14
Altitude
18161632.651038
Surface area
1.9043604212409E+14
Volume
1.0869423693521E+21
Height
9885940.6424254