12748891 is an odd 8-digits composite number following 12748890
and preceding 12748892 . In scientific notation, it is written as 1.2748891 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 12477592 positive integers (up to 12748891) that are relatively prime to 12748891.
12748891 has 4 divisors, whose sum is 13020192
The reverse of 12748891 is 19884721
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twelve million seven hundred forty-eight thousand eight hundred ninety-one
Scientific notation
1.2748891 × 10^7
Engineering notation
1.2748891 × 10^6
Prime Factorization
47 × 271253
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12748891
Product of the distinct prime numbers
The prime factorization of 12748891 is 47 × 271253.
Since it has a total of 2 prime factors.
3 , 9 , 97 , 59 , 704 , 138 , 1422 , 1845 , 17144 , 46167 , 632063 , 591964 , 4470675 , 5690986 , 40100194 , 59167058 , 852985081 , 105969367 , 967021489 , 3561337389
n×2
25497782
n×3
38246673
n×4
50995564
n×5
63744455
n÷2
6374445.5
n÷3
4249630.3333333
n÷3
3187222.75
n÷5
2549778.2
n2
162534221729881
n3
2.0721310766041E+21
n4
2.6417373233338E+28
n5
3.3679221185815E+35
2 √n
3570.5589198331
3 √n
233.60966287162
4 √n
59.754153996464
5 √n
26.369049872093
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12748890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12748891 can be divided by 4 positive divisors.
The sum of these divisors (counting 12748891) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000101000100001011011
3
Ternary
212222201012011
4
Quaternary
300220201123
5
Quinary
11230431031
6
Senary
1133130351
8
Octal
60504133
10
Decimal
12748891
12
Duodecimal
43299b7
16
Hexadecimal
c2885b
20
Vigesimal
3jdc4b
36
Base36
7l93v
md5
310c975a89652a896f4e9c0f0c0c981a
sha1
d4827e5238bdaf9237917f2d07014ab8186e7ef3
sha256
62efb15e2fabf37f042967b760751d07420ac06322b5d3ffe744a240d3e3b745
sha512
b9fc018911fc7a5fce737232eff4e5efaffcf1d7ef5c6bc0150adda47cdb4229b7d68e3708df17a245eb7d0af3d5fa9187b93cc5894687e1ea7e7bdf9bd52b39
ripemd-160
f9e700a1e498b941902a75888b4ecb3ca1f0effa
Diameter
25497782
Circumference
80103644.614034
Area
5.1061631694353E+14
Volume
8.6797223567127E+21
Surface area
2.0424652677741E+15
Circumference
80103644.614034
Perimeter
50995564
Area
162534221729881
Diagonal
18029654.557416
Surface area
975205330379286
Volume
2.0721310766041E+21
Space diagonal
22081726.952158
Perimeter
38246673
Area
70379382501205
Altitude
11040863.476079
Surface area
70379382501205
Volume
2.4420298929569E+20
Height
6009884.8524721