20990515 is an odd 8-digits composite number following 20990514
and preceding 20990516 . In scientific notation, it is written as 2.0990515 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 13286016 positive integers (up to 20990515) that are relatively prime to 20990515.
20990515 has 8 divisors, whose sum is 25465968
The reverse of 20990515 is 51509902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million nine hundred ninety thousand five hundred fifteen
Scientific notation
2.0990515 × 10^7
Engineering notation
2.0990515 × 10^6
Prime Factorization
91 × 5 × 46133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20990515
Product of the distinct prime numbers
The prime factorization of 20990515 is 91 × 5 × 46133.
Since it has a total of 3 prime factors.
2 , 5 , 17 , 28 , 579 , 977 , 6979 , 2432 , 31745 , 79038 , 923153 , 60377 , 2996813 , 1143537 , 50045959 , 47395838 , 582815270 , 484218792 , 745518714 , 2918357719
n×2
41981030
n×3
62971545
n×4
83962060
n×5
104952575
n÷2
10495257.5
n÷3
6996838.3333333
n÷3
5247628.75
n÷5
4198103
n2
440601719965225
n3
9.2484570119559E+21
n4
1.9412987563631E+29
n5
4.0748860664922E+36
2 √n
4581.5406797277
3 √n
275.85087424668
4 √n
67.687079119487
5 √n
29.134302073688
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
-20990514
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 20990515 can be divided by 8 positive divisors.
The sum of these divisors (counting 20990515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100101000110011
3
Ternary
1110111102120111
4
Quaternary
1100010220303
5
Quinary
20333144030
6
Senary
2025522151
8
Octal
120045063
10
Decimal
20990515
12
Duodecimal
7043357
16
Hexadecimal
1404a33
20
Vigesimal
6b3g5f
36
Base36
chwdv
md5
ae6811196b2ea49a280367ddc22577a6
sha1
62a637bc4270b6eeb95ad38269c5a3ed7525a71d
sha256
7a7f03000d0e2aad31767e938afd36cc947ddc751ecbce2a7e62ffd8596cc359
sha512
96ab760a58ce5da8822c08b7c6477598409de536bccd4010276474431943354aac1849d742c36fd0974405a26504bf501c3ad433aefcd47cba5f417aa2aa052d
ripemd-160
6bc7a46fc57465f30a12d1cd4460efedb2f891a6
Diameter
41981030
Circumference
131887295.43813
Area
1.3841911266018E+15
Volume
3.8739846141069E+22
Surface area
5.5367645064071E+15
Circumference
131887295.43813
Perimeter
83962060
Area
440601719965225
Diagonal
29685070.994196
Surface area
2643610319791350
Volume
9.2484570119559E+21
Space diagonal
36356638.457037
Perimeter
62971545
Area
1.907861412205E+14
Altitude
18178319.228518
Surface area
1.907861412205E+14
Volume
1.0899411114444E+21
Height
9895023.664732