20453989 is an odd 8-digits composite number following 20453988
and preceding 20453990 . In scientific notation, it is written as 2.0453989 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20306700 positive integers (up to 20453989) that are relatively prime to 20453989.
20453989 has 4 divisors, whose sum is 20601280
The reverse of 20453989 is 98935402
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million four hundred fifty-three thousand nine hundred eighty-nine
Scientific notation
2.0453989 × 10^7
Engineering notation
2.0453989 × 10^6
Prime Factorization
139 × 147151
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20453989
Product of the distinct prime numbers
The prime factorization of 20453989 is 139 × 147151.
Since it has a total of 2 prime factors.
6 , 9 , 83 , 40 , 680 , 93 , 8781 , 9213 , 37989 , 28711 , 136459 , 795100 , 9204208 , 8068652 , 44719580 , 4597918 , 904403726 , 377725121 , 767237737 , 7672250550
n×2
40907978
n×3
61361967
n×4
81815956
n×5
102269945
n÷2
10226994.5
n÷3
6817996.3333333
n÷3
5113497.25
n÷5
4090797.8
n2
418365666012121
n3
8.5572467305896E+21
n4
1.7502983049777E+29
n5
3.5800582276732E+36
2 √n
4522.6086498834
3 √n
273.48027379182
4 √n
67.250343120934
5 √n
28.983818645314
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
-20453988
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 20453989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20453989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000001101001100101
3
Ternary
1102111011121011
4
Quaternary
1032001221211
5
Quinary
20214011424
6
Senary
2010222221
8
Octal
116015145
10
Decimal
20453989
12
Duodecimal
6a24971
16
Hexadecimal
1381a65
20
Vigesimal
67gej9
36
Base36
c6eed
md5
d1047d3b893233b570f47cfcd3516229
sha1
c8716eda35a65ae144798033b7da82c644f68e65
sha256
97f05733308b0ab525f08a1e0080be928f408e4c66910c537eb71d73d9a9fdad
sha512
54f54b7ecabce76141adb00676d817697e04fb6a8d5c97e04bda90dce33895b4c25e79a215852aeffa6515c2ddb01a25bedf0c5946434045fd1f49db780b24e3
ripemd-160
ea14a41252c8a768abe14ab62323b540675a967c
Diameter
40907978
Circumference
128516203.15801
Area
1.3143345028579E+15
Volume
3.5844511285034E+22
Surface area
5.2573380114315E+15
Circumference
128516203.15801
Perimeter
81815956
Area
418365666012121
Diagonal
28926308.64843
Surface area
2510193996072726
Volume
8.5572467305896E+21
Space diagonal
35427348.165455
Perimeter
61361967
Area
1.8115764741885E+14
Altitude
17713674.082727
Surface area
1.8115764741885E+14
Volume
1.0084811985811E+21
Height
9642102.88281