20991503 is an odd 8-digits composite number following 20991502
and preceding 20991504 . In scientific notation, it is written as 2.0991503 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 18800640 positive integers (up to 20991503) that are relatively prime to 20991503.
20991503 has 16 divisors, whose sum is 23290176
The reverse of 20991503 is 30519902
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred ninety-one thousand five hundred three
Scientific notation
2.0991503 × 10^7
Engineering notation
2.0991503 × 10^6
Prime Factorization
13 × 61 × 103 × 257
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991503
Product of the distinct prime numbers
The prime factorization of 20991503 is 13 × 61 × 103 × 257.
Since it has a total of 4 prime factors.
5 , 5 , 36 , 11 , 571 , 44 , 9505 , 7773 , 90330 , 39036 , 123950 , 443767 , 5458751 , 3051148 , 4595629 , 1706194 , 475369092 , 963493863 , 9111627611 , 8150154543
n×2
41983006
n×3
62974509
n×4
83966012
n×5
104957515
n÷2
10495751.5
n÷3
6997167.6666667
n÷3
5247875.75
n÷5
4198300.6
n2
440643198199009
n3
9.2497630169241E+21
n4
1.9416642811905E+29
n5
4.0758451583603E+36
2 √n
4581.6485024497
3 √n
275.85520217588
4 √n
67.687875594155
5 √n
29.134576332309
1 , 13 , 61 , 103 , 257 , 793 , 1339 , 3341 , 6283 , 15677 , 26471 , 81679 , 203801 , 344123 , 1614731 , 20991503
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991502
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991503 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991503) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100111000001111
3
Ternary
1110111110221002
4
Quaternary
1100010320033
5
Quinary
20333212003
6
Senary
2025530515
8
Octal
120047017
10
Decimal
20991503
12
Duodecimal
7043a3b
16
Hexadecimal
1404e0f
20
Vigesimal
6b3if3
36
Base36
chx5b
md5
3dc5483d41e67995efcfa81d6d3f9d37
sha1
4230fbfc5116d444f55dc6975f47ebd547e0d91e
sha256
82290f3c0d0f1b37b3dc2be128fdcf9eeafb25d7d92e1b62fab311bcdd2725c1
sha512
2e2a3ad82ecc44d00898535ae0cbc301a71564ba533ec2bc976a64e0d611bc11f2ffd06c205fc41bc593825d6a4e1729e7a5f20c1e753d46ba2d702117b5b047
ripemd-160
68c7c08f0d04efade2a0c7ee07845af755b445a2
Diameter
41983006
Circumference
131893503.22522
Area
1.3843214343163E+15
Volume
3.8745316721887E+22
Surface area
5.5372857372653E+15
Circumference
131893503.22522
Perimeter
83966012
Area
440643198199009
Diagonal
29686468.237196
Surface area
2643859189194054
Volume
9.2497630169241E+21
Space diagonal
36358349.723235
Perimeter
62974509
Area
1.9080410182258E+14
Altitude
18179174.861617
Surface area
1.9080410182258E+14
Volume
1.0900950256059E+21
Height
9895489.4123985