20946989 is an odd 8-digits composite number following 20946988
and preceding 20946990 . In scientific notation, it is written as 2.0946989 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 17932320 positive integers (up to 20946989) that are relatively prime to 20946989.
20946989 has 8 divisors, whose sum is 23969088
The reverse of 20946989 is 98964902
Previous prime number is 1187
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred forty-six thousand nine hundred eighty-nine
Scientific notation
2.0946989 × 10^7
Engineering notation
2.0946989 × 10^6
Prime Factorization
7 × 1187 × 2521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20946989
Product of the distinct prime numbers
The prime factorization of 20946989 is 7 × 1187 × 2521.
Since it has a total of 3 prime factors.
6 , 6 , 72 , 71 , 75 , 277 , 2539 , 8182 , 5534 , 32527 , 658154 , 888426 , 5413244 , 4923106 , 1894077 , 67856949 , 897968191 , 226830405 , 3020346887 , 8606753598
n×2
41893978
n×3
62840967
n×4
83787956
n×5
104734945
n÷2
10473494.5
n÷3
6982329.6666667
n÷3
5236747.25
n÷5
4189397.8
n2
438776348166121
n3
9.1910433384959E+21
n4
1.9252468371E+29
n5
4.0328124319018E+36
2 √n
4576.788065882
3 √n
275.66007388185
4 √n
67.651962764446
5 √n
29.122209442737
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
-20946988
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 20946989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20946989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111111010000000101101
3
Ternary
1110102012212102
4
Quaternary
1033322000231
5
Quinary
20330300424
6
Senary
2024544445
8
Octal
117720055
10
Decimal
20946989
12
Duodecimal
7022125
16
Hexadecimal
13fa02d
20
Vigesimal
6ai799
36
Base36
cgyst
md5
37d44109738ca38d144488de213b824a
sha1
38c56889c826977e4a1132194893ecfccb37f702
sha256
8b1ef11140a4b0729a884e67ac71c0d81a77186f169dbe9fa46f189536419327
sha512
781feff827c7280c643f424f9ba2f2eab557afe09df802c881c0c84b4ea8c94384fa622a44fe3e524ced7a39847c5af4c9d158ef9b2bc4cd48023e45c935f5c5
ripemd-160
5bdca22b27131704155cd1e46e15f5ccd6be2b56
Diameter
41893978
Circumference
131613813.51445
Area
1.3784565519676E+15
Volume
3.8499352308059E+22
Surface area
5.5138262078706E+15
Circumference
131613813.51445
Perimeter
83787956
Area
438776348166121
Diagonal
29623515.93468
Surface area
2632658088996726
Volume
9.1910433384959E+21
Space diagonal
36281249.213586
Perimeter
62840967
Area
1.8999573204581E+14
Altitude
18140624.606793
Surface area
1.8999573204581E+14
Volume
1.0831748451383E+21
Height
9874505.31156