20190749 is an odd 8-digits composite number following 20190748
and preceding 20190750 . In scientific notation, it is written as 2.0190749 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19128060 positive integers (up to 20190749) that are relatively prime to 20190749.
20190749 has 4 divisors, whose sum is 21253440
The reverse of 20190749 is 94709102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred ninety thousand seven hundred forty-nine
Scientific notation
2.0190749 × 10^7
Engineering notation
2.0190749 × 10^6
Prime Factorization
19 × 1062671
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20190749
Product of the distinct prime numbers
The prime factorization of 20190749 is 19 × 1062671.
Since it has a total of 2 prime factors.
8 , 5 , 43 , 15 , 168 , 948 , 4361 , 5338 , 72128 , 48076 , 995594 , 498043 , 9016004 , 6488714 , 59977828 , 3505027 , 847525024 , 398906112 , 1480761476 , 7105327088
n×2
40381498
n×3
60572247
n×4
80762996
n×5
100953745
n÷2
10095374.5
n÷3
6730249.6666667
n÷3
5047687.25
n÷5
4038149.8
n2
407666345181001
n3
8.231088851297E+21
n4
1.6619184899324E+29
n5
3.3555379088683E+36
2 √n
4493.4117327483
3 √n
272.30198672029
4 √n
67.03291529352
5 √n
28.908828053018
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
-20190748
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 20190749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20190749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001011000011101
3
Ternary
1101222210111112
4
Quaternary
1031001120131
5
Quinary
20132100444
6
Senary
2000431405
8
Octal
115013035
10
Decimal
20190749
12
Duodecimal
6918565
16
Hexadecimal
134161d
20
Vigesimal
663gh9
36
Base36
c0ra5
md5
ceeb25eb48cf6dc2e02ea6d6158140d5
sha1
9fa61150c3917c03a33c6bcc295a29bf2bc37862
sha256
2f3b6338b3a378fb860f2e31442a9bd38458400a31f7a49d842ae27789bc62dd
sha512
0edbea47ac218611aac92b35ff015e6b58f9721ff1466b1f729754d2824265ddde18b2302fce1a745cdcae475b1b1c69929d8b2047fafc57f0f93cf0bd8f5002
ripemd-160
0aed04dda853cbf4e808297f927b4d7c76f30b01
Diameter
40381498
Circumference
126862217.45775
Area
1.2807215951364E+15
Volume
3.4478304355039E+22
Surface area
5.1228863805457E+15
Circumference
126862217.45775
Perimeter
80762996
Area
407666345181001
Diagonal
28554031.070271
Surface area
2445998071086006
Volume
8.231088851297E+21
Space diagonal
34971403.110871
Perimeter
60572247
Area
1.7652470559735E+14
Altitude
17485701.555435
Surface area
1.7652470559735E+14
Volume
9.7004312388351E+20
Height
9518010.356757