20780087 is an odd 8-digits composite number following 20780086
and preceding 20780088 . In scientific notation, it is written as 2.0780087 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 20489760 positive integers (up to 20780087) that are relatively prime to 20780087.
20780087 has 8 divisors, whose sum is 21072480
The reverse of 20780087 is 78008702
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred eighty thousand eighty-seven
Scientific notation
2.0780087 × 10^7
Engineering notation
2.0780087 × 10^6
Prime Factorization
109 × 311 × 613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20780087
Product of the distinct prime numbers
The prime factorization of 20780087 is 109 × 311 × 613.
Since it has a total of 3 prime factors.
8 , 2 , 88 , 90 , 440 , 711 , 9373 , 5075 , 48150 , 7081 , 680508 , 409790 , 3436075 , 7515250 , 81622821 , 94625085 , 811080303 , 400929265 , 6459436251 , 7373466078
n×2
41560174
n×3
62340261
n×4
83120348
n×5
103900435
n÷2
10390043.5
n÷3
6926695.6666667
n÷3
5195021.75
n÷5
4156017.4
n2
431812015727569
n3
8.9730912544643E+21
n4
1.8646161692671E+29
n5
3.8746886218976E+36
2 √n
4558.5180706015
3 √n
274.9259833859
4 √n
67.516798432697
5 √n
29.075652673162
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
-20780086
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 20780087 can be divided by 8 positive divisors.
The sum of these divisors (counting 20780087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010001010000110111
3
Ternary
1110002201220212
4
Quaternary
1033101100313
5
Quinary
20304430322
6
Senary
2021220035
8
Octal
117212067
10
Decimal
20780087
12
Duodecimal
6b6161b
16
Hexadecimal
13d1437
20
Vigesimal
69ha47
36
Base36
cde0n
md5
54bc7d748dace1fb09a794b35242eb6d
sha1
d00209e6f70476124eb5a5aa8dadca8d6020262b
sha256
42952ba44236003e38562bb88102fda66503d1b01d1aff8ac5ceebddae1834aa
sha512
ef5ad16bdb2220054348b03aaf28e34109360a9124da80aa1e680e98cc022fc2f3bf70cfb209281dff104794b1bbe83cfd80a1e5a8be4423d8ccc4d69c3db97e
ripemd-160
05da1ccf00213bc9f160e5d8890a97f6f402f589
Diameter
41560174
Circumference
130565137.32031
Area
1.3565774563415E+15
Volume
3.7586396753354E+22
Surface area
5.4263098253661E+15
Circumference
130565137.32031
Perimeter
83120348
Area
431812015727569
Diagonal
29387480.862693
Surface area
2590872094365414
Volume
8.9730912544643E+21
Space diagonal
35992166.469702
Perimeter
62340261
Area
1.8698008763972E+14
Altitude
17996083.234851
Surface area
1.8698008763972E+14
Volume
1.0574889457062E+21
Height
9795826.9542309