12789987 is an odd 8-digits composite number following 12789986
and preceding 12789988 . In scientific notation, it is written as 1.2789987 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 7308552 positive integers (up to 12789987) that are relatively prime to 12789987.
12789987 has 8 divisors, whose sum is 19489536
The reverse of 12789987 is 78998721
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twelve million seven hundred eighty-nine thousand nine hundred eighty-seven
Scientific notation
1.2789987 × 10^7
Engineering notation
1.2789987 × 10^6
Prime Factorization
3 × 7 × 609047
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12789987
Product of the distinct prime numbers
The prime factorization of 12789987 is 3 × 7 × 609047.
Since it has a total of 3 prime factors.
9 , 2 , 18 , 16 , 350 , 854 , 6635 , 6390 , 30270 , 46989 , 766822 , 736297 , 101577 , 5467530 , 81298051 , 13441545 , 465693265 , 101540682 , 1510782128 , 1170758040
n×2
25579974
n×3
38369961
n×4
51159948
n×5
63949935
n÷2
6394993.5
n÷3
4263329
n÷3
3197496.75
n÷5
2557997.4
n2
163583767460169
n3
2.0922342592266E+21
n4
2.6759648976463E+28
n5
3.4225556253352E+35
2 √n
3576.3091309337
3 √n
233.86040691667
4 √n
59.802250216307
5 √n
26.386028100195
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
-12789986
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 12789987 can be divided by 8 positive divisors.
The sum of these divisors (counting 12789987) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000110010100011100011
3
Ternary
220001210120020
4
Quaternary
300302203203
5
Quinary
11233234422
6
Senary
1134044523
8
Octal
60624343
10
Decimal
12789987
12
Duodecimal
4349743
16
Hexadecimal
c328e3
20
Vigesimal
3jiej7
36
Base36
7m4tf
md5
84632ab3e95b68a17a0116aa50d5c57c
sha1
e403d8c12e2064dcc25287467bc36ab4605d0560
sha256
18c71d5a49fda40ea3fed4630567cc65f3d1634223905d2760afb1dc2510a549
sha512
791cdd8c8705ed53fc784f64f818499f2b3bd888f52763719363d89e7e7b2e681249de1c126e1be592a2acb9e8cf389e406ec2d8cc9e02288decef0d694c5c6c
ripemd-160
525276cf4efefd56d7dd97973beccb3a00a2b8ab
Diameter
25579974
Circumference
80361858.397418
Area
5.1391356209941E+14
Volume
8.7639303711668E+21
Surface area
2.0556542483976E+15
Circumference
80361858.397418
Perimeter
51159948
Area
163583767460169
Diagonal
18087773.077976
Surface area
981502604761014
Volume
2.0922342592266E+21
Space diagonal
22152907.312145
Perimeter
38369961
Area
70833849133636
Altitude
11076453.656073
Surface area
70833849133636
Volume
2.4657217208832E+20
Height
6029257.6926585