20991504 is an even 8-digits composite number following 20991503
and preceding 20991505 . In scientific notation, it is written as 2.0991504 × 10^7.
The sum of its digits is 30. It has a total of 6 prime factors and 20 positive divisors.
There are 6628608 positive integers (up to 20991504) that are relatively prime to 20991504.
20991504 has 20 divisors, whose sum is 41386364
The reverse of 20991504 is 40519902
Previous prime number is 57
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred ninety-one thousand five hundred four
Scientific notation
2.0991504 × 10^7
Engineering notation
2.0991504 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 57 × 23017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2623938
Product of the distinct prime numbers
The prime factorization of 20991504 is 2 × 2 × 2 × 2 × 57 × 23017.
Since it has a total of 6 prime factors.
9 , 7 , 42 , 74 , 316 , 589 , 5161 , 1945 , 69977 , 1201 , 107288 , 884115 , 248910 , 6182686 , 83674203 , 59730466 , 875900900 , 325118503 , 8072076361 , 8457770631
n×2
41983008
n×3
62974512
n×4
83966016
n×5
104957520
n÷2
10495752
n÷3
6997168
n÷3
5247876
n÷5
4198300.8
n2
440643240182016
n3
9.2497643388537E+21
n4
1.9416646511811E+29
n5
4.0758461291926E+36
2 √n
4581.6486115808
3 √n
275.8552065563
4 √n
67.687876400289
5 √n
29.134576609893
1 , 2 , 4 , 8 , 16 , 57 , 114 , 228 , 456 , 912 , 23017 , 46034 , 92068 , 184136 , 368272 , 1311969 , 2623938 , 5247876 , 10495752 , 20991504
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991503
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991504 can be divided by 20 positive divisors.
The sum of these divisors (counting 20991504) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000000100111000010000
3
Ternary
1110111110221010
4
Quaternary
1100010320100
5
Quinary
20333212004
6
Senary
2025530520
8
Octal
120047020
10
Decimal
20991504
12
Duodecimal
7043a40
16
Hexadecimal
1404e10
20
Vigesimal
6b3if4
36
Base36
chx5c
md5
a0d7680a5aadafd5173d928d06e32037
sha1
2964fa4e4fa386c77b18131f77d3574ab695e3d4
sha256
8d80ad68fc4d8d6454c28b399b973c661881f943a93f09fd764e942d9a723462
sha512
c8475141cfb430ec70ab9d3b1cd18e65f936b9740ff025bd4412f701bd3b952bce69f6bd296a75e5271bc045394f4a02cd1bc7c5d921fef12d3c4804cc21e867
ripemd-160
e523f6c47cb7958c976f7ce6627a3866049c6cd1
Diameter
41983008
Circumference
131893509.5084
Area
1.3843215662098E+15
Volume
3.8745322259173E+22
Surface area
5.5372862648393E+15
Circumference
131893509.5084
Perimeter
83966016
Area
440643240182016
Diagonal
29686469.651409
Surface area
2643859441092096
Volume
9.2497643388537E+21
Space diagonal
36358351.455285
Perimeter
62974512
Area
1.9080412000176E+14
Altitude
18179175.727643
Surface area
1.9080412000176E+14
Volume
1.0900951813968E+21
Height
9895489.883803