20402986 is an even 8-digits composite number following 20402985
and preceding 20402987 . In scientific notation, it is written as 2.0402986 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 9864400 positive integers (up to 20402986) that are relatively prime to 20402986.
20402986 has 16 divisors, whose sum is 31632768
The reverse of 20402986 is 68920402
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred two thousand nine hundred eighty-six
Scientific notation
2.0402986 × 10^7
Engineering notation
2.0402986 × 10^6
Prime Factorization
2 × 53 × 71 × 2711
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20402986
Product of the distinct prime numbers
The prime factorization of 20402986 is 2 × 53 × 71 × 2711.
Since it has a total of 4 prime factors.
7 , 8 , 13 , 55 , 17 , 590 , 1097 , 7266 , 35219 , 4125 , 971382 , 45093 , 2489796 , 4851362 , 88179477 , 17413803 , 885050782 , 404559605 , 2136400167 , 6737066861
n×2
40805972
n×3
61208958
n×4
81611944
n×5
102014930
n÷2
10201493
n÷3
6800995.3333333
n÷3
5100746.5
n÷5
4080597.2
n2
416281837716196
n3
8.4933925069778E+21
n4
1.7329056841237E+29
n5
3.5356450412497E+36
2 √n
4516.9664599153
3 √n
273.25277254356
4 √n
67.208380875567
5 √n
28.969349698854
1 , 2 , 53 , 71 , 106 , 142 , 2711 , 3763 , 5422 , 7526 , 143683 , 192481 , 287366 , 384962 , 10201493 , 20402986
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20402986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110101001100101010
3
Ternary
1102101120122011
4
Quaternary
1031311030222
5
Quinary
20210343421
6
Senary
2005150134
8
Octal
115651452
10
Decimal
20402986
12
Duodecimal
69bb34a
16
Hexadecimal
137532a
20
Vigesimal
67a796
36
Base36
c5b1m
md5
a8b44020ca8e19eac41acff535c3bc11
sha1
6280880a5c05cde78efe3ec5009655c645a162d9
sha256
2de27304c5f2d7e5314eb5630b07a8b29226695a7e364835ca2eb295b44cb812
sha512
59eec7f67e4d3888b95135abb480490b833e42431c1f19b0af4cd480374c0bd6ea5bf95774ada2ba05353d76f2bf8e4e007ebefa6d2b23d4f2990729431fe723
ripemd-160
3162033d83b8d4f67a3e0bbe6457d31830e01439
Diameter
40805972
Circumference
128195741.85779
Area
1.3077879631921E+15
Volume
3.5577039338635E+22
Surface area
5.2311518527682E+15
Circumference
128195741.85779
Perimeter
81611944
Area
416281837716196
Diagonal
28854179.514108
Surface area
2497691026297176
Volume
8.4933925069778E+21
Space diagonal
35339008.378116
Perimeter
61208958
Area
1.8025532329815E+14
Altitude
17669504.189058
Surface area
1.8025532329815E+14
Volume
1.0009559061605E+21
Height
9618059.8380361