12781109 is an odd 8-digits composite number following 12781108
and preceding 12781110 . In scientific notation, it is written as 1.2781109 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 11394240 positive integers (up to 12781109) that are relatively prime to 12781109.
12781109 has 12 divisors, whose sum is 14320908
The reverse of 12781109 is 90118721
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twelve million seven hundred eighty-one thousand one hundred nine
Scientific notation
1.2781109 × 10^7
Engineering notation
1.2781109 × 10^6
Prime Factorization
11 × 11 × 53 × 1993
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1161919
Product of the distinct prime numbers
The prime factorization of 12781109 is 11 × 11 × 53 × 1993.
Since it has a total of 4 prime factors.
4 , 6 , 22 , 52 , 962 , 4 , 846 , 8571 , 28554 , 3273 , 383255 , 890691 , 5612100 , 4370222 , 14873323 , 95888720 , 288947275 , 253812614 , 6398147469 , 9361270740
n×2
25562218
n×3
38343327
n×4
51124436
n×5
63905545
n÷2
6390554.5
n÷3
4260369.6666667
n÷3
3195277.25
n÷5
2556221.8
n2
163356747269881
n3
2.0878803927418E+21
n4
2.6685426878596E+28
n5
3.4106934964686E+35
2 √n
3575.0676916668
3 √n
233.80628402429
4 √n
59.791869778983
5 √n
26.382363980339
1 , 11 , 53 , 121 , 583 , 1993 , 6413 , 21923 , 105629 , 241153 , 1161919 , 12781109
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12781108
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12781109 can be divided by 12 positive divisors.
The sum of these divisors (counting 12781109) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110000110000011000110101
3
Ternary
220001100101102
4
Quaternary
300300120311
5
Quinary
11232443414
6
Senary
1133535445
8
Octal
60603065
10
Decimal
12781109
12
Duodecimal
4344585
16
Hexadecimal
c30635
20
Vigesimal
3jhcf9
36
Base36
7lxyt
md5
c4a7ffaaf8fcdeb9f889cf6986060c50
sha1
6863fe03b2a48a2386dad861435b6a3dedff3377
sha256
ae5fc2a33085921da300727f5087a510c32ae19458d561e601a1fb752484dcb0
sha512
f213c3497180bddc0c2fe96aa3062c9ea7e5e01501bb0c9189c135a16a3f9ff5c1150865a8614dc5b37a3703315de5c1e1526f2fc39a226930a86b684369730e
ripemd-160
4b6ac7b0a1d5bc70ff8f5165212f6098ce50d8a8
Diameter
25562218
Circumference
80306076.278261
Area
5.1320035713738E+14
Volume
8.7456929378824E+21
Surface area
2.0528014285495E+15
Circumference
80306076.278261
Perimeter
51124436
Area
163356747269881
Diagonal
18075217.689969
Surface area
980140483619286
Volume
2.0878803927418E+21
Space diagonal
22137530.165076
Perimeter
38343327
Area
70735546507656
Altitude
11068765.082538
Surface area
70735546507656
Volume
2.4605906400236E+20
Height
6025072.5633229