20190990 is an even 8-digits composite number following 20190989
and preceding 20190991 . In scientific notation, it is written as 2.0190990 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 5346944 positive integers (up to 20190990) that are relatively prime to 20190990.
20190990 has 16 divisors, whose sum is 32529600
The reverse of 20190990 is 09909102
Previous prime number is 149
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred ninety thousand nine hundred ninety
Scientific notation
2.0190990 × 10^7
Engineering notation
2.0190990 × 10^6
Prime Factorization
2 × 15 × 149 × 4517
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20190990
Product of the distinct prime numbers
The prime factorization of 20190990 is 2 × 15 × 149 × 4517.
Since it has a total of 4 prime factors.
8 , 1 , 40 , 88 , 513 , 76 , 912 , 90 , 91874 , 90624 , 488622 , 776251 , 2941692 , 4067680 , 78524230 , 53405029 , 152317579 , 717534904 , 5205721858 , 6955196384
n×2
40381980
n×3
60572970
n×4
80763960
n×5
100954950
n÷2
10095495
n÷3
6730330
n÷3
5047747.5
n÷5
4038198
n2
407676077180100
n3
8.2313835975826E+21
n4
1.6619978390495E+29
n5
3.3557381748271E+36
2 √n
4493.4385497078
3 √n
272.30307012929
4 √n
67.033115321517
5 √n
28.908897064765
1 , 2 , 15 , 30 , 149 , 298 , 2235 , 4470 , 4517 , 9034 , 67755 , 135510 , 673033 , 1346066 , 10095495 , 20190990
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20190989
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20190990 can be divided by 16 positive divisors.
The sum of these divisors (counting 20190990) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000001011100001110
3
Ternary
1101222210211110
4
Quaternary
1031001130032
5
Quinary
20132102430
6
Senary
2000432450
8
Octal
115013416
10
Decimal
20190990
12
Duodecimal
6918726
16
Hexadecimal
134170e
20
Vigesimal
663h9a
36
Base36
c0rgu
md5
4edca2838960e9b940e5fca7944c996f
sha1
1748f2b8e930c40c6ef2d925544441945ae25e93
sha256
8f723431590d024d66307281535e57d3c614668f0f5765866f7c992e4b727dca
sha512
54c8d68d7f94759f973bcffe815d498320071d361158d21c2b500b5d90a5d1e99d7ea32fb07f891b6acf461f76cd107a8b9caeae907dc42fb26f52b81e2f6f72
ripemd-160
8501ff9ea0e881d25bd48c87d30c8bcee44e462e
Diameter
40381980
Circumference
126863731.70541
Area
1.2807521691133E+15
Volume
3.4479538985393E+22
Surface area
5.1230086764532E+15
Circumference
126863731.70541
Perimeter
80763960
Area
407676077180100
Diagonal
28554371.89574
Surface area
2446056463080600
Volume
8.2313835975826E+21
Space diagonal
34971820.535115
Perimeter
60572970
Area
1.7652891967658E+14
Altitude
17485910.267558
Surface area
1.7652891967658E+14
Volume
9.700778600664E+20
Height
9518123.9652465