12981917 is an odd 8-digits composite number following 12981916
and preceding 12981918 . In scientific notation, it is written as 1.2981917 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 11727792 positive integers (up to 12981917) that are relatively prime to 12981917.
12981917 has 4 divisors, whose sum is 13003776
The reverse of 12981917 is 71918921
Previous prime number is 611
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million nine hundred eighty-one thousand nine hundred seventeen
Scientific notation
1.2981917 × 10^7
Engineering notation
1.2981917 × 10^6
Prime Factorization
611 × 21247
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12981917
Product of the distinct prime numbers
The prime factorization of 12981917 is 611 × 21247.
Since it has a total of 2 prime factors.
2 , 10 , 23 , 56 , 70 , 526 , 5551 , 1362 , 32446 , 30879 , 214344 , 373080 , 2009954 , 7614282 , 40834849 , 93793333 , 418027856 , 902604892 , 3760084272 , 4774448789
n×2
25963834
n×3
38945751
n×4
51927668
n×5
64909585
n÷2
6490958.5
n÷3
4327305.6666667
n÷3
3245479.25
n÷5
2596383.4
n2
168530168994889
n3
2.1878446658876E+21
n4
2.8402417861446E+28
n5
3.6871783127661E+35
2 √n
3603.0427419058
3 √n
235.0243946307
4 √n
60.025350827011
5 √n
26.464748163103
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
-12981916
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 12981917 can be divided by 4 positive divisors.
The sum of these divisors (counting 12981917) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001100001011010011101
3
Ternary
220102112211202
4
Quaternary
301201122131
5
Quinary
11310410132
6
Senary
1142125245
8
Octal
61413235
10
Decimal
12981917
12
Duodecimal
4420825
16
Hexadecimal
c6169d
20
Vigesimal
412efh
36
Base36
7q8wt
md5
5bacd978a5dbfe49c625878952b5dff7
sha1
3bf201c88eee82bac7410dca3acd6f2ca48d1f11
sha256
d08f222f2a868c81e0a17843ad622d527a46c93eff2a6ff8c99415c7082308ec
sha512
31c41c77be2237e96a400c88d38097e500534fa23806edcec49b9b3898a7eabf5f6ffdb761ec45b1069c7f94f3d9af95fae540871a644a87c7fda8bb6f1e1c20
ripemd-160
3b6c49b263930bb33247bfd646d7919cd7a87ae4
Diameter
25963834
Circumference
81567790.153425
Area
5.2945314082259E+14
Volume
9.1644223060642E+21
Surface area
2.1178125632904E+15
Circumference
81567790.153425
Perimeter
51927668
Area
168530168994889
Diagonal
18359203.087002
Surface area
1011181013969334
Volume
2.1878446658876E+21
Space diagonal
22485339.823642
Perimeter
38945751
Area
72975703826829
Altitude
11242669.911821
Surface area
72975703826829
Volume
2.5783996657199E+20
Height
6119734.3623339