20764987 is an odd 8-digits composite number following 20764986
and preceding 20764988 . In scientific notation, it is written as 2.0764987 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 20755096 positive integers (up to 20764987) that are relatively prime to 20764987.
20764987 has 4 divisors, whose sum is 20774880
The reverse of 20764987 is 78946702
Previous prime number is 6869
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million seven hundred sixty-four thousand nine hundred eighty-seven
Scientific notation
2.0764987 × 10^7
Engineering notation
2.0764987 × 10^6
Prime Factorization
6869 × 3023
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20764987
Product of the distinct prime numbers
The prime factorization of 20764987 is 6869 × 3023.
Since it has a total of 2 prime factors.
8 , 9 , 45 , 55 , 837 , 191 , 3907 , 9036 , 61705 , 29968 , 20629 , 260733 , 8924005 , 1081564 , 57282498 , 18550731 , 552294075 , 742533900 , 8205193470 , 6143333995
n×2
41529974
n×3
62294961
n×4
83059948
n×5
103824935
n÷2
10382493.5
n÷3
6921662.3333333
n÷3
5191246.75
n÷5
4152997.4
n2
431184685110169
n3
8.9535443809118E+21
n4
1.8592023267356E+29
n5
3.8606312145034E+36
2 √n
4556.8615296057
3 √n
274.85937493363
4 √n
67.504529696944
5 √n
29.071425837881
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20764986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20764987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20764987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111001101100100111011
3
Ternary
1110001222012121
4
Quaternary
1033031210323
5
Quinary
20303434422
6
Senary
2021022111
8
Octal
117154473
10
Decimal
20764987
12
Duodecimal
6b54937
16
Hexadecimal
13cd93b
20
Vigesimal
69fc97
36
Base36
cd2d7
md5
2af4f96dbf75d916aff2e036af566071
sha1
55c33f643a36bcfefce1354769d62b732d3a6e49
sha256
57279c1ffbc8989423b5d9a13a2f3eb60a593d3de1f8e5fa5bb32e01a6ba1dbf
sha512
821ec45dae1765e7472880c348839957896bb1593fb32938f39567526199b4387abbf718cd5dc27003d1789dc9d2a2e5d2a3b59ff6739452953faf4c1d7e6f15
ripemd-160
dac9fb0fe141750e50dcf8e31f6c036c8d5d5808
Diameter
41529974
Circumference
130470261.22218
Area
1.3546066390825E+15
Volume
3.7504519000883E+22
Surface area
5.4184265563301E+15
Circumference
130470261.22218
Perimeter
83059948
Area
431184685110169
Diagonal
29366126.237901
Surface area
2587108110661014
Volume
8.9535443809118E+21
Space diagonal
35966012.502507
Perimeter
62294961
Area
1.867084455141E+14
Altitude
17983006.251254
Surface area
1.867084455141E+14
Volume
1.0551853245662E+21
Height
9788708.745967