20155749 is an odd 8-digits composite number following 20155748
and preceding 20155750 . In scientific notation, it is written as 2.0155749 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13437164 positive integers (up to 20155749) that are relatively prime to 20155749.
20155749 has 4 divisors, whose sum is 26874336
The reverse of 20155749 is 94755102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred fifty-five thousand seven hundred forty-nine
Scientific notation
2.0155749 × 10^7
Engineering notation
2.0155749 × 10^6
Prime Factorization
3 × 6718583
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20155749
Product of the distinct prime numbers
The prime factorization of 20155749 is 3 × 6718583.
Since it has a total of 2 prime factors.
8 , 2 , 19 , 39 , 972 , 510 , 6505 , 9859 , 88503 , 80628 , 993398 , 994550 , 6293333 , 9566491 , 28657093 , 88772809 , 935285561 , 943481097 , 5516598068 , 4593761537
n×2
40311498
n×3
60467247
n×4
80622996
n×5
100778745
n÷2
10077874.5
n÷3
6718583
n÷3
5038937.25
n÷5
4031149.8
n2
406254217751001
n3
8.1883580431805E+21
n4
1.6504248944048E+29
n5
3.3265549914974E+36
2 √n
4489.5154526964
3 √n
272.14455353441
4 √n
67.003846551496
5 √n
28.898798595592
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
-20155748
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 20155749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20155749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000110101100101
3
Ternary
1101221000111020
4
Quaternary
1030320311211
5
Quinary
20124440444
6
Senary
2000001353
8
Octal
114706545
10
Decimal
20155749
12
Duodecimal
6900259
16
Hexadecimal
1338d65
20
Vigesimal
65j979
36
Base36
c009x
md5
51b817499b6ae2d2c8eccf02a326e249
sha1
17c55af55af531b5c5deac2bf62271f7df74f704
sha256
24f150a555b52dd973764676c6f41f3b81f7d85ea67aa42a6ed49e6ed087a7ea
sha512
2282e3a7a93831f731373247515976c46f44f8ce345d3866bd38d6624a53c9fb45939bdec15c9252947c75a2f8d9b5dc01c67d451c4d5bb8a4b6e0aa4663311d
ripemd-160
be57b67030880081ac95f6a05dbe676e49b5c970
Diameter
40311498
Circumference
126642305.972
Area
1.2762852659764E+15
Volume
3.4299313964558E+22
Surface area
5.1051410639057E+15
Circumference
126642305.972
Perimeter
80622996
Area
406254217751001
Diagonal
28504533.595588
Surface area
2437525306506006
Volume
8.1883580431805E+21
Space diagonal
34910781.332606
Perimeter
60467247
Area
1.7591323648347E+14
Altitude
17455390.666303
Surface area
1.7591323648347E+14
Volume
9.6500724985273E+20
Height
9501511.1985293