20486721 is an odd 8-digits composite number following 20486720
and preceding 20486722 . In scientific notation, it is written as 2.0486721 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13063952 positive integers (up to 20486721) that are relatively prime to 20486721.
20486721 has 8 divisors, whose sum is 28503360
The reverse of 20486721 is 12768402
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred eighty-six thousand seven hundred twenty-one
Scientific notation
2.0486721 × 10^7
Engineering notation
2.0486721 × 10^6
Prime Factorization
3 × 23 × 296909
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20486721
Product of the distinct prime numbers
The prime factorization of 20486721 is 3 × 23 × 296909.
Since it has a total of 3 prime factors.
6 , 7 , 68 , 60 , 385 , 893 , 3810 , 6066 , 1971 , 24181 , 579579 , 179234 , 1229319 , 7593478 , 96244468 , 12749770 , 895730501 , 206666906 , 3925726106 , 7322854632
n×2
40973442
n×3
61460163
n×4
81946884
n×5
102433605
n÷2
10243360.5
n÷3
6828907
n÷3
5121680.25
n÷5
4097344.2
n2
419705737331841
n3
8.5983943428167E+21
n4
1.7615290594926E+29
n5
3.6087954375218E+36
2 √n
4526.2259112864
3 √n
273.62607722702
4 √n
67.277231745118
5 √n
28.993089127108
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
-20486720
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 20486721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20486721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001001101001000001
3
Ternary
1102112211111110
4
Quaternary
1032021221001
5
Quinary
20221033341
6
Senary
2011033533
8
Octal
116115101
10
Decimal
20486721
12
Duodecimal
6a3b8a9
16
Hexadecimal
1389a41
20
Vigesimal
680gg1
36
Base36
c73nl
md5
034f542555ba2dae01f078ad6668e9b9
sha1
6e262fbfae9ba584e57cdfd9beb05622c152d7d8
sha256
85517f6bc3798092000cf0a0a1501ce533ff1d21a2ce4f9a22a10f66d3a60bf8
sha512
c6fcfeda7e05d37534d9eaaac7b426026193a7f1b37c77e64b5222da8eb04c26c8b90dfa3536865e705116c03ae80ca2b0ddb73f8384a39e99af1fd2716f6d2e
ripemd-160
35267041b5b62ae6c2542bccb0d495d8fff2f7a0
Diameter
40973442
Circumference
128721864.37949
Area
1.3185444610712E+15
Volume
3.6016870000081E+22
Surface area
5.2741778442848E+15
Circumference
128721864.37949
Perimeter
81946884
Area
419705737331841
Diagonal
28972598.686754
Surface area
2518234423991046
Volume
8.5983943428167E+21
Space diagonal
35484041.652488
Perimeter
61460163
Area
1.8173791532173E+14
Altitude
17742020.826244
Surface area
1.8173791532173E+14
Volume
1.013330491187E+21
Height
9657532.8955846