12912387 is an odd 8-digits composite number following 12912386
and preceding 12912388 . In scientific notation, it is written as 1.2912387 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 8425472 positive integers (up to 12912387) that are relatively prime to 12912387.
12912387 has 16 divisors, whose sum is 17586720
The reverse of 12912387 is 78321921
Previous prime number is 353
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million nine hundred twelve thousand three hundred eighty-seven
Scientific notation
1.2912387 × 10^7
Engineering notation
1.2912387 × 10^6
Prime Factorization
3 × 89 × 353 × 137
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12912387
Product of the distinct prime numbers
The prime factorization of 12912387 is 3 × 89 × 353 × 137.
Since it has a total of 4 prime factors.
3 , 1 , 87 , 96 , 686 , 532 , 2766 , 1560 , 43937 , 14372 , 892283 , 162069 , 4109393 , 5164628 , 63066438 , 56888750 , 787528 , 636789171 , 9716376138 , 7078711367
n×2
25824774
n×3
38737161
n×4
51649548
n×5
64561935
n÷2
6456193.5
n÷3
4304129
n÷3
3228096.75
n÷5
2582477.4
n2
166729738037769
n3
2.1528789019523E+21
n4
2.7798805546143E+28
n5
3.5894893534955E+35
2 √n
3593.380998447
3 √n
234.60405333679
4 √n
59.944816276697
5 √n
26.436338663829
1 , 3 , 89 , 137 , 267 , 353 , 411 , 1059 , 12193 , 31417 , 36579 , 48361 , 94251 , 145083 , 4304129 , 12912387
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12912386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12912387 can be divided by 16 positive divisors.
The sum of these divisors (counting 12912387) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110001010000011100000011
3
Ternary
220022000110120
4
Quaternary
301100130003
5
Quinary
11301144022
6
Senary
1140431323
8
Octal
61203403
10
Decimal
12912387
12
Duodecimal
43a8543
16
Hexadecimal
c50703
20
Vigesimal
40e0j7
36
Base36
7or9f
md5
7a713e02f4a5d66d38972114507cf301
sha1
fff55da25b4d80713acbc46d7f67f9f3c54c6f62
sha256
1631ba188770688ed31be8eb7370ab31122f1020c92c7a42c986c6974a297aaf
sha512
559f3dc8f4e2b0f8ac8eb49b9c1fe09e8a0318e6dead3f676ba23f9dc11e0e1644d3eb75b8beb36642738a2ab52db9f9c5f4d88dfe2dd985bb6bfa3cbe09103f
ripemd-160
d778b1988da386e3f72025fadec0cc03b16beb3d
Diameter
25824774
Circumference
81130920.279017
Area
5.2379692015441E+14
Volume
9.017958056589E+21
Surface area
2.0951876806176E+15
Circumference
81130920.279017
Perimeter
51649548
Area
166729738037769
Diagonal
18260872.81801
Surface area
1000378428226614
Volume
2.1528789019523E+21
Space diagonal
22364910.330992
Perimeter
38737161
Area
72196094353516
Altitude
11182455.165496
Surface area
72196094353516
Volume
2.5371921177399E+20
Height
6086957.6060033