20128439 is an odd 8-digits prime number following 20128438
and preceding 20128440 . In scientific notation, it is written as 2.0128439 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20128438 positive integers (up to 20128439) that are relatively prime to 20128439.
20128439 has 2 divisors, whose sum is 20128440
The reverse of 20128439 is 93482102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred twenty-eight thousand four hundred thirty-nine
Scientific notation
2.0128439 × 10^7
Engineering notation
2.0128439 × 10^6
Prime Factorization
20128439
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20128439
Product of the distinct prime numbers
The prime factorization of 20128439 is 20128439.
Since it has a total of 1 prime factors.
10 , 6 , 14 , 87 , 219 , 770 , 5229 , 7467 , 70573 , 2067 , 503758 , 997300 , 59503 , 6248264 , 33165261 , 12619731 , 68273473 , 790262196 , 6860926656 , 2136461922
n×2
40256878
n×3
60385317
n×4
80513756
n×5
100642195
n÷2
10064219.5
n÷3
6709479.6666667
n÷3
5032109.75
n÷5
4025687.8
n2
405154056576721
n3
8.1551187134071E+21
n4
1.6414980956057E+29
n5
3.3040794286016E+36
2 √n
4486.472890813
3 √n
272.02158403546
4 √n
66.981138321269
5 √n
28.890963071523
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20128440
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10064220
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4486.4730022591
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006381
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20128439 can be divided by 2 positive divisors.
The sum of these divisors (counting 20128439) is 20128440, the average is 10064220.
Base
System
Value
2
Binary
1001100110010001010110111
3
Ternary
1101212122000202
4
Quaternary
1030302022313
5
Quinary
20123102224
6
Senary
1555231115
8
Octal
114621267
10
Decimal
20128439
12
Duodecimal
68a849b
16
Hexadecimal
13322b7
20
Vigesimal
65g11j
36
Base36
bzf7b
md5
6cf99f60bc78877a38cc334cb460c177
sha1
ca2df68ae5410a57f9f44f86bb6498d80fb0f24f
sha256
b1afa2dc96d78b99b8ba4b219e21d1daa3b4e85a2e0c69612b2a3f5f071e8a02
sha512
68a314cef09db1d0e02a408f0fa6ce707f05e91dc05046996bd80c1ceebe776650ca857d516472eaebd71f3f001deab4b05648abaec5e853687911116edc05c3
ripemd-160
9891b10e671186fecd62f194e3282f4fa29e7acb
Diameter
40256878
Circumference
126470712.18126
Area
1.2728290077135E+15
Volume
3.416008138559E+22
Surface area
5.0913160308541E+15
Circumference
126470712.18126
Perimeter
80513756
Area
405154056576721
Diagonal
28465911.4232
Surface area
2430924339460326
Volume
8.1551187134071E+21
Space diagonal
34863479.025051
Perimeter
60385317
Area
1.7543685272088E+14
Altitude
17431739.512525
Surface area
1.7543685272088E+14
Volume
9.6108995727191E+20
Height
9488637.1410665