12987687 is an odd 8-digits composite number following 12987686
and preceding 12987688 . In scientific notation, it is written as 1.2987687 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 8658456 positive integers (up to 12987687) that are relatively prime to 12987687.
12987687 has 4 divisors, whose sum is 17316920
The reverse of 12987687 is 78678921
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twelve million nine hundred eighty-seven thousand six hundred eighty-seven
Scientific notation
1.2987687 × 10^7
Engineering notation
1.2987687 × 10^6
Prime Factorization
3 × 4329229
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12987687
Product of the distinct prime numbers
The prime factorization of 12987687 is 3 × 4329229.
Since it has a total of 2 prime factors.
3 , 2 , 52 , 43 , 692 , 941 , 7381 , 1206 , 23794 , 43744 , 736633 , 643738 , 8290861 , 3841699 , 88200730 , 39645615 , 719700686 , 380561594 , 1112079581 , 2512116066
n×2
25975374
n×3
38963061
n×4
51950748
n×5
64938435
n÷2
6493843.5
n÷3
4329229
n÷3
3246921.75
n÷5
2597537.4
n2
168680013609969
n3
2.190763219922E+21
n4
2.8452946991459E+28
n5
3.6953796975267E+35
2 √n
3603.8433650757
3 √n
235.05920946571
4 √n
60.032019498562
5 √n
26.467100272672
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
-12987686
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 12987687 can be divided by 4 positive divisors.
The sum of these divisors (counting 12987687) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001100010110100100111
3
Ternary
220102211202110
4
Quaternary
301202310213
5
Quinary
11311101222
6
Senary
1142212103
8
Octal
61426447
10
Decimal
12987687
12
Duodecimal
4424033
16
Hexadecimal
c62d27
20
Vigesimal
413947
36
Base36
7qdd3
md5
6eea46aedddee77d32d332101126ae27
sha1
295ed96b2c2055d7ee397bfa003c8667533f0aba
sha256
f5d474ef65d8e1b4ec4e47235856cd9ef5cc3180bfc549a5d2a84f5c5db8c8d1
sha512
f6fab91b0c756dbcf370ba39416472236f35175a8633d8720b19d91ccee6b196f09780da5baa81326821f912a5ab3c218938bd334fe3f3754174f3ab2f88a10b
ripemd-160
062023b718af078ca665c954bbeea7c7703c7535
Diameter
25975374
Circumference
81604044.132647
Area
5.299238915645E+14
Volume
9.1766475166156E+21
Surface area
2.119695566258E+15
Circumference
81604044.132647
Perimeter
51950748
Area
168680013609969
Diagonal
18367363.099257
Surface area
1012080081659814
Volume
2.190763219922E+21
Space diagonal
22495333.756802
Perimeter
38963061
Area
73040588448469
Altitude
11247666.878401
Surface area
73040588448469
Volume
2.5818392146349E+20
Height
6122454.3664189