20128515 is an odd 8-digits composite number following 20128514
and preceding 20128516 . In scientific notation, it is written as 2.0128515 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 9528960 positive integers (up to 20128515) that are relatively prime to 20128515.
20128515 has 16 divisors, whose sum is 27971328
The reverse of 20128515 is 51582102
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-eight thousand five hundred fifteen
Scientific notation
2.0128515 × 10^7
Engineering notation
2.0128515 × 10^6
Prime Factorization
3 × 55 × 43 × 2837
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20128515
Product of the distinct prime numbers
The prime factorization of 20128515 is 3 × 55 × 43 × 2837.
Since it has a total of 4 prime factors.
1 , 6 , 59 , 38 , 831 , 718 , 3681 , 2269 , 32988 , 47782 , 690589 , 16811 , 8409850 , 1971695 , 94671126 , 65670000 , 350769545 , 821712050 , 5906669309 , 9885565912
n×2
40257030
n×3
60385545
n×4
80514060
n×5
100642575
n÷2
10064257.5
n÷3
6709505
n÷3
5032128.75
n÷5
4025703
n2
405157116105225
n3
8.1552110888808E+21
n4
1.641522887307E+29
n5
3.3041418060003E+36
2 √n
4486.4813607102
3 √n
272.02192639708
4 √n
66.981201547227
5 √n
28.890984888514
1 , 3 , 43 , 55 , 129 , 165 , 2365 , 2837 , 7095 , 8511 , 121991 , 156035 , 365973 , 468105 , 6709505 , 20128515
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
-20128514
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 20128515 can be divided by 16 positive divisors.
The sum of these divisors (counting 20128515) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010001100000011
3
Ternary
1101212122010120
4
Quaternary
1030302030003
5
Quinary
20123103030
6
Senary
1555231323
8
Octal
114621403
10
Decimal
20128515
12
Duodecimal
68a8543
16
Hexadecimal
1332303
20
Vigesimal
65g15f
36
Base36
bzf9f
md5
d32cbda3c1157a1eb5dadcc38764af8a
sha1
fe1650a6647e8970dea480bfc7626320696bb13a
sha256
2fbcd20ae2d27f2dc516363d3bac8eb5a9711082533834a0985c586248bf4c02
sha512
b44b848b93608d014849babc2dc47a1f56c709e2d91d5216fb4dcdab7f71c716d40c6d4a001ae2f0cfca1190d7d848044ef7f7792e666a0c0f8d15f714cff9b0
ripemd-160
cfc11842eaa8157069a24ecf72c94fe5aca3018b
Diameter
40257030
Circumference
126471189.70334
Area
1.2728386195058E+15
Volume
3.4160468327069E+22
Surface area
5.0913544780232E+15
Circumference
126471189.70334
Perimeter
80514060
Area
405157116105225
Diagonal
28466018.90343
Surface area
2430942696631350
Volume
8.1552110888808E+21
Space diagonal
34863610.660912
Perimeter
60385545
Area
1.7543817753558E+14
Altitude
17431805.330456
Surface area
1.7543817753558E+14
Volume
9.6110084382589E+20
Height
9488672.9678101