20989842 is an even 8-digits composite number following 20989841
and preceding 20989843 . In scientific notation, it is written as 2.0989842 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 6996612 positive integers (up to 20989842) that are relatively prime to 20989842.
20989842 has 8 divisors, whose sum is 41979696
The reverse of 20989842 is 24898902
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred eighty-nine thousand eight hundred forty-two
Scientific notation
2.0989842 × 10^7
Engineering notation
2.0989842 × 10^6
Prime Factorization
2 × 3 × 3498307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20989842
Product of the distinct prime numbers
The prime factorization of 20989842 is 2 × 3 × 3498307.
Since it has a total of 3 prime factors.
9 , 9 , 65 , 71 , 163 , 653 , 8687 , 4139 , 75587 , 70049 , 811939 , 701996 , 2022166 , 2283687 , 9666418 , 41948117 , 578388123 , 837367210 , 5776052394 , 274734539
n×2
41979684
n×3
62969526
n×4
83959368
n×5
104949210
n÷2
10494921
n÷3
6996614
n÷3
5247460.5
n÷5
4197968.4
n2
440573467184964
n3
9.2475674656046E+21
n4
1.9410497998738E+29
n5
4.0742328613483E+36
2 √n
4581.4672322303
3 √n
275.8479260957
4 √n
67.686536565482
5 √n
29.134115249908
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
-20989841
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 20989842 can be divided by 8 positive divisors.
The sum of these divisors (counting 20989842) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100011110010010
3
Ternary
1110111101122120
4
Quaternary
1100010132102
5
Quinary
20333133332
6
Senary
2025515110
8
Octal
120043622
10
Decimal
20989842
12
Duodecimal
7042a96
16
Hexadecimal
1404792
20
Vigesimal
6b3ec2
36
Base36
chvv6
md5
64a9d033f239358555c0a63cb3c26a92
sha1
8d9f783a8a1d58ecfa7bbdab9bdaeb380ebc6eef
sha256
c8f3ed81bc8148f576dd6343244094dd733f9310aedbe5930281c1078f032eee
sha512
2fabeabea10dc6c7f73008a9366d7e41d433fa1d628b5fa479fc669c4ca8f04d41a9aab9c26feab748f65e694c3f29386ce00a59969bbd367764cae03b7e6129
ripemd-160
db958a9d647bb84b411fc814124f1bcaa43f9198
Diameter
41979684
Circumference
131883066.85442
Area
1.3841023678749E+15
Volume
3.8736120018026E+22
Surface area
5.5364094714995E+15
Circumference
131883066.85442
Perimeter
83959368
Area
440573467184964
Diagonal
29684119.228468
Surface area
2643440803109784
Volume
9.2475674656046E+21
Space diagonal
36355472.786843
Perimeter
62969526
Area
1.9077390740778E+14
Altitude
18177736.393422
Surface area
1.9077390740778E+14
Volume
1.0898362774015E+21
Height
9894706.4094895