12781290 is an even 8-digits composite number following 12781289
and preceding 12781291 . In scientific notation, it is written as 1.2781290 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 3369344 positive integers (up to 12781290) that are relatively prime to 12781290.
12781290 has 32 divisors, whose sum is 31026240
The reverse of 12781290 is 09218721
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twelve million seven hundred eighty-one thousand two hundred ninety
Scientific notation
1.2781290 × 10^7
Engineering notation
1.2781290 × 10^6
Prime Factorization
2 × 3 × 5 × 89 × 4787
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
12781290
Product of the distinct prime numbers
The prime factorization of 12781290 is 2 × 3 × 5 × 89 × 4787.
Since it has a total of 5 prime factors.
7 , 2 , 70 , 90 , 524 , 730 , 4012 , 6860 , 5927 , 93629 , 887371 , 342047 , 414331 , 3088903 , 67163584 , 97807876 , 423566639 , 856321135 , 2603128525 , 8200337586
n×2
25562580
n×3
38343870
n×4
51125160
n×5
63906450
n÷2
6390645
n÷3
4260430
n÷3
3195322.5
n÷5
2556258
n2
163361374064100
n3
2.0879690967117E+21
n4
2.6686938536111E+28
n5
3.4109350064221E+35
2 √n
3575.0930057832
3 √n
233.80738770363
4 √n
59.79208146388
5 √n
26.382438702819
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 89 , 178 , 267 , 445 , 534 , 890 , 1335 , 2670 , 4787 , 9574 , 14361 , 23935 , 28722 , 47870 , 71805 , 143610 , 426043 , 852086 , 1278129 , 2130215 , 2556258 , 4260430 , 6390645 , 12781290
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12781289
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12781290 can be divided by 32 positive divisors.
The sum of these divisors (counting 12781290) is 1, the average is 0.03125.
Base
System
Value
2
Binary
110000110000011011101010
3
Ternary
220001100122010
4
Quaternary
300300123222
5
Quinary
11233000130
6
Senary
1133540350
8
Octal
60603352
10
Decimal
12781290
12
Duodecimal
43446b6
16
Hexadecimal
c306ea
20
Vigesimal
3jhd4a
36
Base36
7ly3u
md5
06010cba1dbd65fcd0c50f5bcd1b61bb
sha1
9d91803ccc22395d6c1419a9e5b6df7093943cf8
sha256
0e5d224849a26fee9ecbbf5ef30eba08bda77f698257addfd5a967111ab24571
sha512
44649087c31df1b7dd3a4d435a7bf7c6bda3bdc632b5125519e99f78887d7e1265ff42d99289449ad88e815f08b592ef8a706cc8ed5f138c6988b72b580a64f2
ripemd-160
75a1c7e092a161d9fe9d9b57cfd4cc1bf56e5368
Diameter
25562580
Circumference
80307213.534801
Area
5.1321489264011E+14
Volume
8.7460645002028E+21
Surface area
2.0528595705604E+15
Circumference
80307213.534801
Perimeter
51125160
Area
163361374064100
Diagonal
18075473.662624
Surface area
980168244384600
Volume
2.0879690967117E+21
Space diagonal
22137843.666272
Perimeter
38343870
Area
70737549968321
Altitude
11068921.833136
Surface area
70737549968321
Volume
2.4606951786547E+20
Height
6025157.8875412