20190820 is an even 8-digits composite number following 20190819
and preceding 20190821 . In scientific notation, it is written as 2.0190820 × 10^7.
The sum of its digits is 22. It has a total of 5 prime factors and 24 positive divisors.
There are 7353216 positive integers (up to 20190820) that are relatively prime to 20190820.
20190820 has 24 divisors, whose sum is 36368640
The reverse of 20190820 is 02809102
Previous prime number is 79
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred ninety thousand eight hundred twenty
Scientific notation
2.0190820 × 10^7
Engineering notation
2.0190820 × 10^6
Prime Factorization
2 × 2 × 65 × 79 × 983
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10095410
Product of the distinct prime numbers
The prime factorization of 20190820 is 2 × 2 × 65 × 79 × 983.
Since it has a total of 5 prime factors.
10 , 9 , 56 , 21 , 522 , 383 , 6145 , 7038 , 42120 , 85666 , 930388 , 358630 , 7377898 , 7727112 , 10376432 , 40787617 , 353507149 , 200954745 , 2339343337 , 2284963402
n×2
40381640
n×3
60572460
n×4
80763280
n×5
100954100
n÷2
10095410
n÷3
6730273.3333333
n÷3
5047705
n÷5
4038164
n2
407669212272400
n3
8.2311756845338E+21
n4
1.661941866348E+29
n5
3.3555969073896E+36
2 √n
4493.419633197
3 √n
272.30230589977
4 √n
67.032974223116
5 √n
28.908848384348
1 , 2 , 4 , 65 , 79 , 130 , 158 , 260 , 316 , 983 , 1966 , 3932 , 5135 , 10270 , 20540 , 63895 , 77657 , 127790 , 155314 , 255580 , 310628 , 5047705 , 10095410 , 20190820
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20190819
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20190820 can be divided by 24 positive divisors.
The sum of these divisors (counting 20190820) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101000001011001100100
3
Ternary
1101222210121011
4
Quaternary
1031001121210
5
Quinary
20132101240
6
Senary
2000432004
8
Octal
115013144
10
Decimal
20190820
12
Duodecimal
6918604
16
Hexadecimal
1341664
20
Vigesimal
663h10
36
Base36
c0rc4
md5
d159165299900a3be2d5465c426d2209
sha1
25c361b4313797816b9b08901113c67a24aec058
sha256
234e68ff02eee6bb16faab923bfa353665a62d0d9f8564890ac9e676df12d87e
sha512
9418e8171faf1ff682fa8dca4eb3e93e111efae8c3a7f5268a072435c4e8ee1e7e99378bbfbd18af756afdc50a77e5ba5be6bcf50e89e47f0943e0e5c4a64a70
ripemd-160
9f7265b1f83302acd62ca57de3c24bc7400c736b
Diameter
40381640
Circumference
126862663.56391
Area
1.2807306023697E+15
Volume
3.4478668081251E+22
Surface area
5.1229224094788E+15
Circumference
126862663.56391
Perimeter
80763280
Area
407669212272400
Diagonal
28554131.479434
Surface area
2446015273634400
Volume
8.2311756845338E+21
Space diagonal
34971526.086478
Perimeter
60572460
Area
1.7652594708434E+14
Altitude
17485763.043239
Surface area
1.7652594708434E+14
Volume
9.7005335727861E+20
Height
9518043.826478