20128105 is an odd 8-digits composite number following 20128104
and preceding 20128106 . In scientific notation, it is written as 2.0128105 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors.
There are 15301440 positive integers (up to 20128105) that are relatively prime to 20128105.
20128105 has 16 divisors, whose sum is 25369344
The reverse of 20128105 is 50182102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-eight thousand one hundred five
Scientific notation
2.0128105 × 10^7
Engineering notation
2.0128105 × 10^6
Prime Factorization
5 × 23 × 181 × 967
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20128105
Product of the distinct prime numbers
The prime factorization of 20128105 is 5 × 23 × 181 × 967.
Since it has a total of 4 prime factors.
9 , 3 , 89 , 64 , 612 , 194 , 9653 , 5853 , 26487 , 49731 , 725813 , 494030 , 7693777 , 8063859 , 402375 , 64621869 , 751184044 , 418168507 , 5557274769 , 1385594727
n×2
40256210
n×3
60384315
n×4
80512420
n×5
100640525
n÷2
10064052.5
n÷3
6709368.3333333
n÷3
5032026.25
n÷5
4025621
n2
405140610891025
n3
8.1547127557787E+21
n4
1.6413891459315E+29
n5
3.303805307517E+36
2 √n
4486.4356676542
3 √n
272.02007943607
4 √n
66.980860457703
5 √n
28.890867190807
1 , 5 , 23 , 115 , 181 , 905 , 967 , 4163 , 4835 , 20815 , 22241 , 111205 , 175027 , 875135 , 4025621 , 20128105
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
-20128104
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 20128105 can be divided by 16 positive divisors.
The sum of these divisors (counting 20128105) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010000101101001
3
Ternary
1101212121120101
4
Quaternary
1030302011221
5
Quinary
20123044410
6
Senary
1555225401
8
Octal
114620551
10
Decimal
20128105
12
Duodecimal
68a8261
16
Hexadecimal
1332169
20
Vigesimal
65g055
36
Base36
bzey1
md5
a317ef7c50aca30ae61360d7fcfe2a86
sha1
1370c400e3f71a21fa213cb4e7d3f1fe33cbf067
sha256
ffcea44db61641a358562110025902f2ecec54586f2b1269b6241ec30a49944c
sha512
1273793c4cc4ff3016e61c2f6c5f1589fc48606ebf33c489cecc0d2a360588e8cb1fe9eda01634fd5b05f5577cbd5da5d71d4ad5421fbc02392d738a635ab425
ripemd-160
16dcd79cd0d13ccb1036ae4c6286255d120a7e68
Diameter
40256210
Circumference
126468613.59737
Area
1.2727867668461E+15
Volume
3.4158380914252E+22
Surface area
5.0911470673845E+15
Circumference
126468613.59737
Perimeter
80512420
Area
405140610891025
Diagonal
28465439.07587
Surface area
2430843665346150
Volume
8.1547127557787E+21
Space diagonal
34862900.520081
Perimeter
60384315
Area
1.7543103056819E+14
Altitude
17431450.260041
Surface area
1.7543103056819E+14
Volume
9.6104211470659E+20
Height
9488479.6919566