12981965 is an odd 8-digits composite number following 12981964
and preceding 12981966 . In scientific notation, it is written as 1.2981965 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 9774592 positive integers (up to 12981965) that are relatively prime to 12981965.
12981965 has 8 divisors, whose sum is 16494840
The reverse of 12981965 is 56918921
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twelve million nine hundred eighty-one thousand nine hundred sixty-five
Scientific notation
1.2981965 × 10^7
Engineering notation
1.2981965 × 10^6
Prime Factorization
5 × 17 × 152729
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12981965
Product of the distinct prime numbers
The prime factorization of 12981965 is 5 × 17 × 152729.
Since it has a total of 3 prime factors.
6 , 5 , 42 , 95 , 240 , 790 , 4674 , 7698 , 92886 , 64371 , 929284 , 626267 , 955213 , 9855128 , 85780849 , 84222922 , 794916320 , 666325700 , 6870615862 , 2233531890
n×2
25963930
n×3
38945895
n×4
51927860
n×5
64909825
n÷2
6490982.5
n÷3
4327321.6666667
n÷3
3245491.25
n÷5
2596393
n2
168531415261225
n3
2.1878689343217E+21
n4
2.8402837929951E+28
n5
3.687246479073E+35
2 √n
3603.0494029364
3 √n
235.02468429406
4 √n
60.02540631213
5 √n
26.464767733495
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
-12981964
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 12981965 can be divided by 8 positive divisors.
The sum of these divisors (counting 12981965) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100001011011001101
3
Ternary
220102112220112
4
Quaternary
301201123031
5
Quinary
11310410330
6
Senary
1142125405
8
Octal
61413315
10
Decimal
12981965
12
Duodecimal
4420865
16
Hexadecimal
c616cd
20
Vigesimal
412ei5
36
Base36
7q8y5
md5
c3bc035aeb4e6b0187e67f1953aa0875
sha1
75894098ddcaa3e0af222940cf6023eeeb7e7318
sha256
e72933e01d7c5beb6c3cc584ec5a73a9a69e05be42e57e2640fa3ebf2ef852e5
sha512
3b556163bc3f6810b78128172552417ab962c1daf8d8390333c5ad2f799b7cb3188a4908010ba87eb7d96c605d30b81b06586938fec0b101e6c737a0c9b6e0d3
ripemd-160
941fd4ec7c8e64b6729ea5dbf2462ca2120f34cc
Diameter
25963930
Circumference
81568091.74632
Area
5.2945705608376E+14
Volume
9.1645239614431E+21
Surface area
2.117828224335E+15
Circumference
81568091.74632
Perimeter
51927860
Area
168531415261225
Diagonal
18359270.969253
Surface area
1011188491567350
Volume
2.1878689343217E+21
Space diagonal
22485422.962081
Perimeter
38945895
Area
72976243475983
Altitude
11242711.48104
Surface area
72976243475983
Volume
2.5784282663438E+20
Height
6119756.9897509