20190921 is an odd 8-digits composite number following 20190920
and preceding 20190922 . In scientific notation, it is written as 2.0190921 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13232352 positive integers (up to 20190921) that are relatively prime to 20190921.
20190921 has 8 divisors, whose sum is 27377760
The reverse of 20190921 is 12909102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred ninety thousand nine hundred twenty-one
Scientific notation
2.0190921 × 10^7
Engineering notation
2.0190921 × 10^6
Prime Factorization
3 × 59 × 114073
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20190921
Product of the distinct prime numbers
The prime factorization of 20190921 is 3 × 59 × 114073.
Since it has a total of 3 prime factors.
6 , 9 , 71 , 90 , 430 , 358 , 1888 , 7600 , 3925 , 18205 , 349329 , 896112 , 3050944 , 8213040 , 4714788 , 20616241 , 911794194 , 270873943 , 8258268720 , 8290637979
n×2
40381842
n×3
60572763
n×4
80763684
n×5
100954605
n÷2
10095460.5
n÷3
6730307
n÷3
5047730.25
n÷5
4038184.2
n2
407673290828241
n3
8.231299208923E+21
n4
1.6619751205473E+29
n5
3.3556808362936E+36
2 √n
4493.4308718395
3 √n
272.30275994253
4 √n
67.033058052273
5 √n
28.908877306282
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20190920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20190921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20190921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011011001001
3
Ternary
1101222210201220
4
Quaternary
1031001123021
5
Quinary
20132102141
6
Senary
2000432253
8
Octal
115013311
10
Decimal
20190921
12
Duodecimal
6918689
16
Hexadecimal
13416c9
20
Vigesimal
663h61
36
Base36
c0rex
md5
f04c2f7b6ec04c6cdf2826c33138d3f6
sha1
a7d2f8ce89cfd00afd5c547de66a6f256ce7b8eb
sha256
7ab7cb1a498d85e12706449fdda0e581f7990b76029832c1b9c8fd6ba80daef0
sha512
046a5a2966cc3f80feb15701b7706db1237b83a77929b854bc34af2e53ffe077841c077dba9b1fb5e64354113313b5b781dab77fc7cdb62c6c63be859d20bec2
ripemd-160
8a4fac3db7707ec1cfe6ca6a41ea68f1654d3c95
Diameter
40381842
Circumference
126863298.16562
Area
1.2807434155308E+15
Volume
3.4479185499003E+22
Surface area
5.1229736621231E+15
Circumference
126863298.16562
Perimeter
80763684
Area
407673290828241
Diagonal
28554274.315004
Surface area
2446039744969446
Volume
8.231299208923E+21
Space diagonal
34971701.023609
Perimeter
60572763
Area
1.7652771315083E+14
Altitude
17485850.511805
Surface area
1.7652771315083E+14
Volume
9.7006791476749E+20
Height
9518091.4383346