12542978 is an even 8-digits composite number following 12542977
and preceding 12542979 . In scientific notation, it is written as 1.2542978 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 5375556 positive integers (up to 12542978) that are relatively prime to 12542978.
12542978 has 8 divisors, whose sum is 21502272
The reverse of 12542978 is 87924521
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million five hundred forty-two thousand nine hundred seventy-eight
Scientific notation
1.2542978 × 10^7
Engineering notation
1.2542978 × 10^6
Prime Factorization
2 × 7 × 895927
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12542978
Product of the distinct prime numbers
The prime factorization of 12542978 is 2 × 7 × 895927.
Since it has a total of 3 prime factors.
8 , 3 , 87 , 76 , 759 , 615 , 9752 , 9622 , 40045 , 10711 , 649600 , 454077 , 528850 , 4605872 , 15843961 , 18270959 , 382304804 , 494395747 , 2053165926 , 2780883163
n×2
25085956
n×3
37628934
n×4
50171912
n×5
62714890
n÷2
6271489
n÷3
4180992.6666667
n÷3
3135744.5
n÷5
2508595.6
n2
157326297108484
n3
1.9733402834532E+21
n4
2.4751563761867E+28
n5
3.1045831973069E+35
2 √n
3541.6066975315
3 √n
232.34511903191
4 √n
59.511399727544
5 √n
26.283314521487
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
-12542977
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 12542978 can be divided by 8 positive divisors.
The sum of these divisors (counting 12542978) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111110110010000000010
3
Ternary
212121020201202
4
Quaternary
233312100002
5
Quinary
11202333403
6
Senary
1124501202
8
Octal
57662002
10
Decimal
12542978
12
Duodecimal
424a802
16
Hexadecimal
bf6402
20
Vigesimal
3i7h8i
36
Base36
7gu82
md5
ad58b60527b76803a8a4a2bca666e336
sha1
c055281e695d25fed446cdd39ba4b2fb0f8e19af
sha256
32fb8f6b8190f2d17a8881c408d44faf6422ff2031d7f3ea3d4cd591f7b63580
sha512
e346a4e7d091df9b9a7f01ba33478a19cd9ca018414bdb8d1c42aa0acda372b66165f49b5d84ba3664f9d2156cf9a326a16f3cf653eabea56f8071f6b88a526e
ripemd-160
2822eacecfb9a15fcac7b256d0cebbfdc22379e9
Diameter
25085956
Circumference
78809855.077877
Area
4.942551392125E+14
Volume
8.2659084500391E+21
Surface area
1.97702055685E+15
Circumference
78809855.077877
Perimeter
50171912
Area
157326297108484
Diagonal
17738449.600147
Surface area
943957782650904
Volume
1.9733402834532E+21
Space diagonal
21725075.174219
Perimeter
37628934
Area
68124284989643
Altitude
10862537.587109
Surface area
68124284989643
Volume
2.3256038266972E+20
Height
5912816.5333825