20157449 is an odd 8-digits composite number following 20157448
and preceding 20157450 . In scientific notation, it is written as 2.0157449 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 18558720 positive integers (up to 20157449) that are relatively prime to 20157449.
20157449 has 8 divisors, whose sum is 21764232
The reverse of 20157449 is 94475102
Previous prime number is 433
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred fifty-seven thousand four hundred forty-nine
Scientific notation
2.0157449 × 10^7
Engineering notation
2.0157449 × 10^6
Prime Factorization
13 × 433 × 3581
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157449
Product of the distinct prime numbers
The prime factorization of 20157449 is 13 × 433 × 3581.
Since it has a total of 3 prime factors.
4 , 9 , 88 , 4 , 165 , 587 , 2116 , 83 , 53101 , 84584 , 238218 , 881754 , 1440540 , 3549147 , 7509470 , 75991939 , 61984732 , 844725384 , 5142471383 , 2551952940
n×2
40314898
n×3
60472347
n×4
80629796
n×5
100787245
n÷2
10078724.5
n÷3
6719149.6666667
n÷3
5039362.25
n÷5
4031489.8
n2
406322750187601
n3
8.1904301144463E+21
n4
1.6509817732002E+29
n5
3.3279580893212E+36
2 √n
4489.7047787132
3 √n
272.15220449848
4 √n
67.005259336213
5 √n
28.89928606247
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
-20157448
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 20157449 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157449) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010000001001
3
Ternary
1101221002211012
4
Quaternary
1030321100021
5
Quinary
20130014244
6
Senary
2000013305
8
Octal
114712011
10
Decimal
20157449
12
Duodecimal
6901235
16
Hexadecimal
1339409
20
Vigesimal
65jdc9
36
Base36
c01l5
md5
89752ed999ff21b0feac572d592e614c
sha1
544a39dd7d8c6afaf5ae40395c5784b03102f0e5
sha256
bf515f64cc54c875dc770427f3fcf77cb4b2073ce8f5280535ea309d2276d906
sha512
7bf82c6b703cbebceefbbaedbba44298b5334726789a3404015b243562bb1fb3482d1ccf9c3ba68d1c51128b0de02871772031c543883993f1354347701376ef
ripemd-160
ea0a890bcc31166d90206c3d820e7a91ab19e9ff
Diameter
40314898
Circumference
126652987.38702
Area
1.2765005669758E+15
Volume
3.430799343638E+22
Surface area
5.1060022679031E+15
Circumference
126652987.38702
Perimeter
80629796
Area
406322750187601
Diagonal
28506937.758644
Surface area
2437936501125606
Volume
8.1904301144463E+21
Space diagonal
34913725.818978
Perimeter
60472347
Area
1.7594291189901E+14
Altitude
17456862.909489
Surface area
1.7594291189901E+14
Volume
9.6525144579325E+20
Height
9502312.5862147