12886981 is an odd 8-digits composite number following 12886980
and preceding 12886982 . In scientific notation, it is written as 1.2886981 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 12694572 positive integers (up to 12886981) that are relatively prime to 12886981.
12886981 has 4 divisors, whose sum is 13079392
The reverse of 12886981 is 18968821
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twelve million eight hundred eighty-six thousand nine hundred eighty-one
Scientific notation
1.2886981 × 10^7
Engineering notation
1.2886981 × 10^6
Prime Factorization
67 × 192343
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12886981
Product of the distinct prime numbers
The prime factorization of 12886981 is 67 × 192343.
Since it has a total of 2 prime factors.
10 , 8 , 76 , 83 , 361 , 264 , 9231 , 3426 , 81009 , 82119 , 216314 , 934778 , 7507690 , 1218226 , 77927666 , 20688576 , 538093223 , 871757981 , 4309224514 , 3010365757
n×2
25773962
n×3
38660943
n×4
51547924
n×5
64434905
n÷2
6443490.5
n÷3
4295660.3333333
n÷3
3221745.25
n÷5
2577396.2
n2
166074279294361
n3
2.1401960818551E+21
n4
2.7580666243141E+28
n5
3.554315218427E+35
2 √n
3589.8441470348
3 √n
234.45008583284
4 √n
59.915308119335
5 √n
26.425927407642
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
-12886980
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 12886981 can be divided by 4 positive divisors.
The sum of these divisors (counting 12886981) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001001010001111000101
3
Ternary
220020201121121
4
Quaternary
301022033011
5
Quinary
11244340411
6
Senary
1140113541
8
Octal
61121705
10
Decimal
12886981
12
Duodecimal
43958b1
16
Hexadecimal
c4a3c5
20
Vigesimal
40ah91
36
Base36
7o7np
md5
7c235b251d9dca8b25d824579ac0a18d
sha1
07d64fd79ed2a4c0d3791ae7cca06c540239b37f
sha256
d80e3dcf9a3661d248e06588e091f7d20a580dafd786859fd0853c88e610ba42
sha512
2727220e79664e4c5b8c1ac980b510460b7f88736c7561f4b35eef7feb22f2f8daa0f00f3e83a26ac3660fdd9b6721fc5fad5c26eec9459d118dcb1bb6767155
ripemd-160
a512c67c82e8b1fae0103542500460f196606be7
Diameter
25773962
Circumference
80971289.673102
Area
5.2173773578138E+14
Volume
8.964832383997E+21
Surface area
2.0869509431255E+15
Circumference
80971289.673102
Perimeter
51547924
Area
166074279294361
Diagonal
18224943.308244
Surface area
996445675766166
Volume
2.1401960818551E+21
Space diagonal
22320905.848175
Perimeter
38660943
Area
71912272392054
Altitude
11160452.924087
Surface area
71912272392054
Volume
2.5222452709144E+20
Height
6074981.1027481