12156981 is an odd 8-digits composite number following 12156980
and preceding 12156982 . In scientific notation, it is written as 1.2156981 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 7884864 positive integers (up to 12156981) that are relatively prime to 12156981.
12156981 has 8 divisors, whose sum is 16515360
The reverse of 12156981 is 18965121
Previous prime number is 76459
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million one hundred fifty-six thousand nine hundred eighty-one
Scientific notation
1.2156981 × 10^7
Engineering notation
1.2156981 × 10^6
Prime Factorization
3 × 76459 × 53
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12156981
Product of the distinct prime numbers
The prime factorization of 12156981 is 3 × 76459 × 53.
Since it has a total of 3 prime factors.
10 , 4 , 50 , 23 , 328 , 529 , 1361 , 9783 , 1349 , 62163 , 395695 , 598060 , 5758031 , 9398285 , 9264563 , 1591879 , 440350445 , 316338527 , 9481043007 , 4611483792
n×2
24313962
n×3
36470943
n×4
48627924
n×5
60784905
n÷2
6078490.5
n÷3
4052327
n÷3
3039245.25
n÷5
2431396.2
n2
147792187034361
n3
1.7967068097252E+21
n4
2.18425305484E+28
n5
2.6553922886881E+35
2 √n
3486.6862491483
3 √n
229.9368509683
4 √n
59.048168889038
5 √n
26.119517351838
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
-12156980
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 12156981 can be divided by 8 positive divisors.
The sum of these divisors (counting 12156981) is 1, the average is 0.125.
Base
System
Value
2
Binary
101110011000000000110101
3
Ternary
211212122020120
4
Quaternary
232120000311
5
Quinary
11103010411
6
Senary
1112322153
8
Octal
56300065
10
Decimal
12156981
12
Duodecimal
40a3359
16
Hexadecimal
b98035
20
Vigesimal
3fjc91
36
Base36
78kdx
md5
8cf124501b19aa9eff2e66a1da76743b
sha1
b8d78a97717d4ffb88fef65dd36c2760b2790b4e
sha256
cde2564e5e66633e72250eca47bb99bb95f3e42b6031ed1fbc8e06432abb50d5
sha512
9ecca85ecdf14358e911a0c57980c6cc474b3b914246e5e1638398e513ef83eb2b29f5a32fc7ebf07926c497e03ba0b8b09903cb8502b6afc30abe72e69406c0
ripemd-160
2f6c9af2ea9db37c2567f1bdec4a443bc39f146b
Diameter
24313962
Circumference
76384564.398861
Area
4.6430284904512E+14
Volume
7.5260278854498E+21
Surface area
1.8572113961805E+15
Circumference
76384564.398861
Perimeter
48627924
Area
147792187034361
Diagonal
17192567.407712
Surface area
886753122206166
Volume
1.7967068097252E+21
Space diagonal
21056508.758649
Perimeter
36470943
Area
63995894226309
Altitude
10528254.379325
Surface area
63995894226309
Volume
2.1174392816012E+20
Height
5730855.8025707