20686947 is an odd 8-digits composite number following 20686946
and preceding 20686948 . In scientific notation, it is written as 2.0686947 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 13315680 positive integers (up to 20686947) that are relatively prime to 20686947.
20686947 has 8 divisors, whose sum is 28533840
The reverse of 20686947 is 74968602
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million six hundred eighty-six thousand nine hundred forty-seven
Scientific notation
2.0686947 × 10^7
Engineering notation
2.0686947 × 10^6
Prime Factorization
3 × 29 × 237781
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20686947
Product of the distinct prime numbers
The prime factorization of 20686947 is 3 × 29 × 237781.
Since it has a total of 3 prime factors.
9 , 3 , 73 , 42 , 221 , 8 , 8539 , 3453 , 18157 , 95097 , 953605 , 891582 , 7323425 , 1389250 , 24294599 , 81130919 , 546389592 , 40673112 , 3587038377 , 1663217985
n×2
41373894
n×3
62060841
n×4
82747788
n×5
103434735
n÷2
10343473.5
n÷3
6895649
n÷3
5171736.75
n÷5
4137389.4
n2
427949776180809
n3
8.8529743385143E+21
n4
1.831410109332E+29
n5
3.7886283867016E+36
2 √n
4548.2905580009
3 √n
274.51461264409
4 √n
67.44101539865
5 √n
29.049541380445
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
-20686946
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 20686947 can be divided by 8 positive divisors.
The sum of these divisors (counting 20686947) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010100001100011
3
Ternary
1102221000011020
4
Quaternary
1032322201203
5
Quinary
20243440242
6
Senary
2015220523
8
Octal
116724143
10
Decimal
20686947
12
Duodecimal
6b17743
16
Hexadecimal
13ba863
20
Vigesimal
695h77
36
Base36
cbe5f
md5
79e4ba92ac58e7dbfe6c57c152f76099
sha1
688f0bb302aff2d7bd070df19fad5b968736fff2
sha256
eca2a611770b24c53c21b9e5428af181e823589ad6f05a94d90006a970c7b9e1
sha512
da25f76e11b4be1130380f00c7cf83518d9aa4cafe35ccf55dccbd0e06aab80f7a269aeb4525eec561cecd6a8f46160ba5d9c29373566b8d01460fbc72d4c293
ripemd-160
86d001caecd1199ceb7e02dc9edd606ec99b8ab8
Diameter
41373894
Circumference
129979921.4408
Area
1.344443872955E+15
Volume
3.7083252192394E+22
Surface area
5.3777754918201E+15
Circumference
129979921.4408
Perimeter
82747788
Area
427949776180809
Diagonal
29255761.011493
Surface area
2567698657084854
Volume
8.8529743385143E+21
Space diagonal
35830843.257485
Perimeter
62060841
Area
1.8530768885822E+14
Altitude
17915421.628742
Surface area
1.8530768885822E+14
Volume
1.0433330314057E+21
Height
9751920.3371645