20128087 is an odd 8-digits composite number following 20128086
and preceding 20128088 . In scientific notation, it is written as 2.0128087 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16344504 positive integers (up to 20128087) that are relatively prime to 20128087.
20128087 has 8 divisors, whose sum is 24214400
The reverse of 20128087 is 78082102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-eight thousand eighty-seven
Scientific notation
2.0128087 × 10^7
Engineering notation
2.0128087 × 10^6
Prime Factorization
19 × 7 × 151339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20128087
Product of the distinct prime numbers
The prime factorization of 20128087 is 19 × 7 × 151339.
Since it has a total of 3 prime factors.
6 , 6 , 1 , 2 , 81 , 469 , 4716 , 3486 , 51666 , 35953 , 115078 , 559691 , 7433196 , 6073662 , 21529160 , 9347224 , 918334100 , 361627114 , 4162517073 , 2418880088
n×2
40256174
n×3
60384261
n×4
80512348
n×5
100640435
n÷2
10064043.5
n÷3
6709362.3333333
n÷3
5032021.75
n÷5
4025617.4
n2
405139886279569
n3
8.1546908782053E+21
n4
1.6413832745462E+29
n5
3.3037905350411E+36
2 √n
4486.433661607
3 √n
272.0199983494
4 √n
66.980845482921
5 √n
28.890862023547
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
-20128086
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 20128087 can be divided by 8 positive divisors.
The sum of these divisors (counting 20128087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010000101010111
3
Ternary
1101212121112201
4
Quaternary
1030302011113
5
Quinary
20123044322
6
Senary
1555225331
8
Octal
114620527
10
Decimal
20128087
12
Duodecimal
68a8247
16
Hexadecimal
1332157
20
Vigesimal
65g047
36
Base36
bzexj
md5
c75e83fccac2e4f74503623041ddc9a6
sha1
3176a7a644f6af88d700dcbd9aeed4886d0a2831
sha256
078bbb1ad9fb758da195f813a7fc8b95596ba5b39f2cd691a8533236c8f8f2a1
sha512
55b9babddc2cb4191f333dbca3bea57b2b68297f6e7554222c59b3fe8db059e565d37be414da9f05aefcd9f825b3dada38230022e8b7a2da822d1c3cf620beb5
ripemd-160
be3f6351884eb80de89bf0920ce80ae65636a2f5
Diameter
40256174
Circumference
126468500.50003
Area
1.2727844904121E+15
Volume
3.4158289273687E+22
Surface area
5.0911379616484E+15
Circumference
126468500.50003
Perimeter
80512348
Area
405139886279569
Diagonal
28465413.620026
Surface area
2430839317677414
Volume
8.1546908782053E+21
Space diagonal
34862869.343167
Perimeter
60384261
Area
1.7543071680222E+14
Altitude
17431434.671583
Surface area
1.7543071680222E+14
Volume
9.6103953640984E+20
Height
9488471.2066752