20973945 is an odd 8-digits composite number following 20973944
and preceding 20973946 . In scientific notation, it is written as 2.0973945 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 11186096 positive integers (up to 20973945) that are relatively prime to 20973945.
20973945 has 4 divisors, whose sum is 22372224
The reverse of 20973945 is 54937902
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred seventy-three thousand nine hundred forty-five
Scientific notation
2.0973945 × 10^7
Engineering notation
2.0973945 × 10^6
Prime Factorization
15 × 1398263
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20973945
Product of the distinct prime numbers
The prime factorization of 20973945 is 15 × 1398263.
Since it has a total of 2 prime factors.
10 , 3 , 7 , 81 , 713 , 568 , 317 , 1357 , 33946 , 91357 , 505115 , 464352 , 66199 , 5781675 , 78456646 , 78566270 , 692956187 , 608238325 , 5716738849 , 3576559571
n×2
41947890
n×3
62921835
n×4
83895780
n×5
104869725
n÷2
10486972.5
n÷3
6991315
n÷3
5243486.25
n÷5
4194789
n2
439906368863025
n3
9.2265719856828E+21
n4
1.9351761336625E+29
n5
4.058827779275E+36
2 √n
4579.7319790573
3 √n
275.77826919526
4 √n
67.673717047738
5 √n
29.129700872686
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
-20973944
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 20973945 can be divided by 4 positive divisors.
The sum of these divisors (counting 20973945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000000100101111001
3
Ternary
1110110120211210
4
Quaternary
1100000211321
5
Quinary
20332131240
6
Senary
2025313333
8
Octal
120004571
10
Decimal
20973945
12
Duodecimal
7035849
16
Hexadecimal
1400979
20
Vigesimal
6b1eh5
36
Base36
chjll
md5
7c3b7866175bdbf004247f9e0d70a343
sha1
a3421fc3153bffb132cc58a0f4fc05974829a757
sha256
4cb46515518057697e3f8a57d57ff45bc16b3ff568e540a47177d700b3707fe6
sha512
ba313146f127f835f87293401f2a8e4452b57dec23f82729bd207d6849cb524a078c16a3164a8462f42ba094bb2b91d3a3e5e6d3d092790f37a59fc9f331c92b
ripemd-160
5b129d0ff308d19ab4f689f497615634427dd6e0
Diameter
41947890
Circumference
131783183.05759
Area
1.3820066166874E+15
Volume
3.8648174357385E+22
Surface area
5.5280264667498E+15
Circumference
131783183.05759
Perimeter
83895780
Area
439906368863025
Diagonal
29661637.475467
Surface area
2639438213178150
Volume
9.2265719856828E+21
Space diagonal
36327938.375155
Perimeter
62921835
Area
1.9048504536097E+14
Altitude
18163969.187578
Surface area
1.9048504536097E+14
Volume
1.0873619363637E+21
Height
9887212.4918225