20128712 is an even 8-digits composite number following 20128711
and preceding 20128713 . In scientific notation, it is written as 2.0128712 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 8 positive divisors.
There are 10064352 positive integers (up to 20128712) that are relatively prime to 20128712.
20128712 has 8 divisors, whose sum is 37741350
The reverse of 20128712 is 21782102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-eight thousand seven hundred twelve
Scientific notation
2.0128712 × 10^7
Engineering notation
2.0128712 × 10^6
Prime Factorization
2 × 2 × 2 × 2516089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5032178
Product of the distinct prime numbers
The prime factorization of 20128712 is 2 × 2 × 2 × 2516089.
Since it has a total of 4 prime factors.
8 , 1 , 78 , 84 , 778 , 148 , 1965 , 836 , 1282 , 80090 , 169732 , 467241 , 4653174 , 3480006 , 7561257 , 80424835 , 650260899 , 846765113 , 6957946566 , 8710328887
n×2
40257424
n×3
60386136
n×4
80514848
n×5
100643560
n÷2
10064356
n÷3
6709570.6666667
n÷3
5032178
n÷5
4025742.4
n2
405165046778944
n3
8.1554505390799E+21
n4
1.6415871513138E+29
n5
3.3043034991697E+36
2 √n
4486.5033155008
3 √n
272.0228138304
4 √n
66.98136543473
5 √n
28.891041440145
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
-20128711
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 20128712 can be divided by 8 positive divisors.
The sum of these divisors (counting 20128712) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010001111001000
3
Ternary
1101212122101212
4
Quaternary
1030302033020
5
Quinary
20123104322
6
Senary
1555232252
8
Octal
114621710
10
Decimal
20128712
12
Duodecimal
68a8688
16
Hexadecimal
13323c8
20
Vigesimal
65g1fc
36
Base36
bzfew
md5
bf9e9a1d8729db2b70e59a303a4b1ec3
sha1
e4145acdc1c9689b9eccbc22633c326c1471346c
sha256
e361345e44c5ca5dc5697f25aee2cc10aaa5e7c1fb2f89ef9e6d92f3eb1c843e
sha512
6ea75020979dc5e6ff99544abe6244870b6071e70d503d2033a0cde1a21671594fd755b913ab88f73f251dbcade6d641bd5154a323dabaa428ccb83337490f22
ripemd-160
5be538aec480117e58a362c4d43c7c6fd985e68b
Diameter
40257424
Circumference
126472427.49085
Area
1.2728635344521E+15
Volume
3.4161471333718E+22
Surface area
5.0914541378084E+15
Circumference
126472427.49085
Perimeter
80514848
Area
405165046778944
Diagonal
28466297.503502
Surface area
2430990280673664
Volume
8.1554505390799E+21
Space diagonal
34863951.874921
Perimeter
60386136
Area
1.7544161161804E+14
Altitude
17431975.937461
Surface area
1.7544161161804E+14
Volume
9.6112906330248E+20
Height
9488765.8345007