20512690 is an even 8-digits composite number following 20512689
and preceding 20512691 . In scientific notation, it is written as 2.0512690 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 7459120 positive integers (up to 20512690) that are relatively prime to 20512690.
20512690 has 8 divisors, whose sum is 31328640
The reverse of 20512690 is 09621502
Previous prime number is 55
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million five hundred twelve thousand six hundred ninety
Scientific notation
2.0512690 × 10^7
Engineering notation
2.0512690 × 10^6
Prime Factorization
2 × 55 × 186479
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512690
Product of the distinct prime numbers
The prime factorization of 20512690 is 2 × 55 × 186479.
Since it has a total of 3 prime factors.
1 , 2 , 2 , 25 , 843 , 797 , 9723 , 4066 , 57544 , 41332 , 542102 , 376695 , 8998575 , 7165662 , 53613565 , 12738912 , 689213236 , 135645804 , 95993636 , 5233874784
n×2
41025380
n×3
61538070
n×4
82050760
n×5
102563450
n÷2
10256345
n÷3
6837563.3333333
n÷3
5128172.5
n÷5
4102538
n2
420770451036100
n3
8.6311338232637E+21
n4
1.7704777246512E+29
n5
3.6317260717676E+36
2 √n
4529.0937283302
3 √n
273.74164469262
4 √n
67.298541799434
5 √n
29.000435740163
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
-20512689
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 20512690 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512690) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111111110110010
3
Ternary
1102121011010021
4
Quaternary
1032033332302
5
Quinary
20222401230
6
Senary
2011354054
8
Octal
116177662
10
Decimal
20512690
12
Duodecimal
6a5292a
16
Hexadecimal
138ffb2
20
Vigesimal
6841ea
36
Base36
c7noy
md5
3b2383ee0401e79d4ef93f8ed9759f58
sha1
5e27343b503eab7f68fad3c86d5ddcd997d21730
sha256
518991f90d424db00cfcb8dec85a989b8a27b69af1edf8f683cfc92a0dbdee57
sha512
a8d7297f1c3ba44cab5372a99ff4533f5a484294032c90d16d2f31dbe47e12b7942cb90d6496f60cf01385eb176ccebd95078c0b37f0a4814c240554c79adf3e
ripemd-160
7a0d7fa783daa401f381676c8807ee1eb239a3a4
Diameter
41025380
Circumference
128885032.41873
Area
1.3218893578227E+15
Volume
3.6154008815087E+22
Surface area
5.2875574312907E+15
Circumference
128885032.41873
Perimeter
82050760
Area
420770451036100
Diagonal
29009324.398755
Surface area
2524622706216600
Volume
8.6311338232637E+21
Space diagonal
35529021.27991
Perimeter
61538070
Area
1.8219894987955E+14
Altitude
17764510.639955
Surface area
1.8219894987955E+14
Volume
1.0171888759597E+21
Height
9669774.799585