20984955 is an odd 8-digits composite number following 20984954
and preceding 20984956 . In scientific notation, it is written as 2.0984955 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 11191968 positive integers (up to 20984955) that are relatively prime to 20984955.
20984955 has 8 divisors, whose sum is 33575952
The reverse of 20984955 is 55948902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred eighty-four thousand nine hundred fifty-five
Scientific notation
2.0984955 × 10^7
Engineering notation
2.0984955 × 10^6
Prime Factorization
5 × 3 × 1398997
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20984955
Product of the distinct prime numbers
The prime factorization of 20984955 is 5 × 3 × 1398997.
Since it has a total of 3 prime factors.
4 , 8 , 100 , 21 , 560 , 848 , 8326 , 4302 , 96228 , 3498 , 104912 , 660873 , 7076719 , 6784059 , 17811507 , 58318937 , 465002363 , 935719404 , 3954011290 , 7865713699
n×2
41969910
n×3
62954865
n×4
83939820
n×5
104924775
n÷2
10492477.5
n÷3
6994985
n÷3
5246238.75
n÷5
4196991
n2
440368336352025
n3
9.2411097217721E+21
n4
1.9392427166145E+29
n5
4.0694921142233E+36
2 √n
4580.9338567589
3 √n
275.82651616083
4 √n
67.682596409704
5 √n
29.132758482354
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
-20984954
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 20984955 can be divided by 8 positive divisors.
The sum of these divisors (counting 20984955) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011010001111011
3
Ternary
1110111010221120
4
Quaternary
1100003101323
5
Quinary
20333004310
6
Senary
2025440323
8
Octal
120032173
10
Decimal
20984955
12
Duodecimal
70400a3
16
Hexadecimal
140347b
20
Vigesimal
6b327f
36
Base36
chs3f
md5
dba773502532d6c7aeb463c7f2a9c1fe
sha1
d5accba81ec9027837c64dc38c01131f54fe719a
sha256
8037848ff4b7da17e16af78828a3ec6b62f21331d54c2ab6ad65535f2f22402f
sha512
3df6874fbf6d6cd814e0f8a2d132fefed082c37a86c8dd882eca7fad1e4f71bc1c459f9d3aee1a0ec4fcb54f950cfda4bd7e512094861da519702bdc1f2d086b
ripemd-160
e5659dc3828e5cb0a7bf361c374ce60c18e0b62e
Diameter
41969910
Circumference
131852360.92782
Area
1.3834579303571E+15
Volume
3.8709069883915E+22
Surface area
5.5338317214283E+15
Circumference
131852360.92782
Perimeter
83939820
Area
440368336352025
Diagonal
29677207.966789
Surface area
2642210018112150
Volume
9.2411097217721E+21
Space diagonal
36347008.254547
Perimeter
62954865
Area
1.9068508315157E+14
Altitude
18173504.127273
Surface area
1.9068508315157E+14
Volume
1.0890752249923E+21
Height
9892402.6555964