20190989 is an odd 8-digits composite number following 20190988
and preceding 20190990 . In scientific notation, it is written as 2.0190989 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 15410304 positive integers (up to 20190989) that are relatively prime to 20190989.
20190989 has 12 divisors, whose sum is 23571324
The reverse of 20190989 is 98909102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred ninety thousand nine hundred eighty-nine
Scientific notation
2.0190989 × 10^7
Engineering notation
2.0190989 × 10^6
Prime Factorization
7 × 377 × 7 × 1093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2884427
Product of the distinct prime numbers
The prime factorization of 20190989 is 7 × 377 × 7 × 1093.
Since it has a total of 4 prime factors.
3 , 7 , 49 , 36 , 874 , 807 , 2502 , 859 , 14592 , 83458 , 895230 , 149708 , 5166205 , 7406234 , 47666638 , 72542810 , 422547271 , 153066805 , 9060333724 , 9194882230
n×2
40381978
n×3
60572967
n×4
80763956
n×5
100954945
n÷2
10095494.5
n÷3
6730329.6666667
n÷3
5047747.25
n÷5
4038197.8
n2
407676036798121
n3
8.2313823745545E+21
n4
1.6619975097942E+29
n5
3.3557373438283E+36
2 √n
4493.4384384344
3 √n
272.30306563383
4 √n
67.033114491529
5 √n
28.90889677841
1 , 7 , 49 , 377 , 1093 , 2639 , 7651 , 18473 , 53557 , 412061 , 2884427 , 20190989
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20190988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20190989 can be divided by 12 positive divisors.
The sum of these divisors (counting 20190989) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000001011100001101
3
Ternary
1101222210211102
4
Quaternary
1031001130031
5
Quinary
20132102424
6
Senary
2000432445
8
Octal
115013415
10
Decimal
20190989
12
Duodecimal
6918725
16
Hexadecimal
134170d
20
Vigesimal
663h99
36
Base36
c0rgt
md5
1c9db830f78280eabef399574fd60d5c
sha1
f33e1c0e6d3ee3fbe7f30f50d6278f646fbb7dc5
sha256
c40f913b48573dfae3c294fcb33834d576f1be1a57eeacc4732187c672f08349
sha512
3c95f6b2c47f2422ae302ba90e3729bfddfa960ffa059256183492bb833fe9f33de3e302a4e36a9e75f5368a61048bc060b4a9c59ec763ea46625a94749a8738
ripemd-160
b0fbf0e00f43b8cc5cde6f2f9c5d3848114177e6
Diameter
40381978
Circumference
126863725.42222
Area
1.2807520422496E+15
Volume
3.4479533862385E+22
Surface area
5.1230081689983E+15
Circumference
126863725.42222
Perimeter
80763956
Area
407676036798121
Diagonal
28554370.481526
Surface area
2446056220788726
Volume
8.2313823745545E+21
Space diagonal
34971818.803064
Perimeter
60572967
Area
1.7652890219067E+14
Altitude
17485909.401532
Surface area
1.7652890219067E+14
Volume
9.7007771593115E+20
Height
9518123.493842