12856815 is an odd 8-digits composite number following 12856814
and preceding 12856816 . In scientific notation, it is written as 1.2856815 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 6856944 positive integers (up to 12856815) that are relatively prime to 12856815.
12856815 has 8 divisors, whose sum is 18285312
The reverse of 12856815 is 51865821
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million eight hundred fifty-six thousand eight hundred fifteen
Scientific notation
1.2856815 × 10^7
Engineering notation
1.2856815 × 10^6
Prime Factorization
3 × 15 × 285707
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12856815
Product of the distinct prime numbers
The prime factorization of 12856815 is 3 × 15 × 285707.
Since it has a total of 3 prime factors.
4 , 5 , 23 , 47 , 932 , 646 , 2506 , 4753 , 36819 , 22585 , 690802 , 407906 , 4842821 , 1494829 , 23480099 , 42665749 , 297650086 , 445368198 , 7749597780 , 8439906079
n×2
25713630
n×3
38570445
n×4
51427260
n×5
64284075
n÷2
6428407.5
n÷3
4285605
n÷3
3214203.75
n÷5
2571363
n2
165297691944225
n3
2.1252018452539E+21
n4
2.7323326962088E+28
n5
3.5129095993608E+35
2 √n
3585.6401102174
3 √n
234.2670083823
4 √n
59.880214680789
5 √n
26.413544181793
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
-12856814
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 12856815 can be divided by 8 positive divisors.
The sum of these divisors (counting 12856815) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001000010110111101111
3
Ternary
220012012020100
4
Quaternary
301002313233
5
Quinary
11242404230
6
Senary
1135322143
8
Octal
61026757
10
Decimal
12856815
12
Duodecimal
4380353
16
Hexadecimal
c42def
20
Vigesimal
40720f
36
Base36
7nkdr
md5
74bb76932ad89dad592bba2df1824af5
sha1
c9c3809a0706e19ad44ecaee446b70ef28e4d9f2
sha256
34baa52f3279661bcea294614dac51ae7d5c93a46210c64b6999353a4784f9fb
sha512
5b26c6546ee13e4dd2f81804d3dbdbf2f83c2a143a0b2686735af505da3573a68fbf16589d66ee3939e7ba37e5a4b094c222979d46d562e9c44dbea7a80710f4
ripemd-160
931e1825c51217d95a113fceee573a987198eb8d
Diameter
25713630
Circumference
80781751.105126
Area
5.1929801466733E+14
Volume
8.9020246725935E+21
Surface area
2.0771920586693E+15
Circumference
80781751.105126
Perimeter
51427260
Area
165297691944225
Diagonal
18182282.141922
Surface area
991786151665350
Volume
2.1252018452539E+21
Space diagonal
22268656.803514
Perimeter
38570445
Area
71576000205317
Altitude
11134328.401757
Surface area
71576000205317
Volume
2.5045743936153E+20
Height
6060760.7139739