20971245 is an odd 8-digits composite number following 20971244
and preceding 20971246 . In scientific notation, it is written as 2.0971245 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11184656 positive integers (up to 20971245) that are relatively prime to 20971245.
20971245 has 8 divisors, whose sum is 33554016
The reverse of 20971245 is 54217902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred seventy-one thousand two hundred forty-five
Scientific notation
2.0971245 × 10^7
Engineering notation
2.0971245 × 10^6
Prime Factorization
3 × 5 × 1398083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20971245
Product of the distinct prime numbers
The prime factorization of 20971245 is 3 × 5 × 1398083.
Since it has a total of 3 prime factors.
7 , 4 , 88 , 59 , 157 , 422 , 7959 , 6826 , 10020 , 73258 , 830486 , 353687 , 1707795 , 7154446 , 38726251 , 95789784 , 85550509 , 355169814 , 5845056584 , 3001410631
n×2
41942490
n×3
62913735
n×4
83884980
n×5
104856225
n÷2
10485622.5
n÷3
6990415
n÷3
5242811.25
n÷5
4194249
n2
439793116850025
n3
9.2230092027755E+21
n4
1.9341798562866E+29
n5
4.0562159640251E+36
2 √n
4579.4371924943
3 √n
275.76643493645
4 √n
67.671539013785
5 √n
29.128950854102
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
-20971244
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 20971245 can be divided by 8 positive divisors.
The sum of these divisors (counting 20971245) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111111111111011101101
3
Ternary
1110110110010210
4
Quaternary
1033333323231
5
Quinary
20332034440
6
Senary
2025253033
8
Octal
117777355
10
Decimal
20971245
12
Duodecimal
7034179
16
Hexadecimal
13ffeed
20
Vigesimal
6b1825
36
Base36
chhil
md5
64faf3359b230e4b73e33813016e1c9b
sha1
3b8e28687665f2e886016b1c9970874ad107e664
sha256
efbd3891db8908d01104469901e913088912704d8446b60e2f6b7bd15ea4a2be
sha512
f5d6fab3204ecd61a082e6945cc8a199cb158ca0526f34e9cd7dc3bef46bcaa175b7d44464fb3fae61be81b2128330f918410c79fa3b24b0228fcdbf18d50915
ripemd-160
58f66c4be447eca42e3a933b3238c2a6a021a9b6
Diameter
41942490
Circumference
131766218.45726
Area
1.3816508249954E+15
Volume
3.8633250607241E+22
Surface area
5.5266032999816E+15
Circumference
131766218.45726
Perimeter
83884980
Area
439793116850025
Diagonal
29657819.098849
Surface area
2638758701100150
Volume
9.2230092027755E+21
Space diagonal
36323261.837975
Perimeter
62913735
Area
1.9043600580083E+14
Altitude
18161630.918987
Surface area
1.9043600580083E+14
Volume
1.0869420583714E+21
Height
9885939.6996163