12891856 is an even 8-digits composite number following 12891855
and preceding 12891857 . In scientific notation, it is written as 1.2891856 × 10^7.
The sum of its digits is 40. It has a total of 5 prime factors and 10 positive divisors.
There are 6445920 positive integers (up to 12891856) that are relatively prime to 12891856.
12891856 has 10 divisors, whose sum is 24978002
The reverse of 12891856 is 65819821
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twelve million eight hundred ninety-one thousand eight hundred fifty-six
Scientific notation
1.2891856 × 10^7
Engineering notation
1.2891856 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 805741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1611482
Product of the distinct prime numbers
The prime factorization of 12891856 is 2 × 2 × 2 × 2 × 805741.
Since it has a total of 5 prime factors.
10 , 1 , 63 , 20 , 3 , 617 , 2209 , 7437 , 85705 , 12467 , 120781 , 38168 , 8542232 , 1370712 , 48873934 , 67590015 , 360901529 , 889260070 , 3173613315 , 5430020201
n×2
25783712
n×3
38675568
n×4
51567424
n×5
64459280
n÷2
6445928
n÷3
4297285.3333333
n÷3
3222964
n÷5
2578371.2
n2
166199951124736
n3
2.1426258371071E+21
n4
2.7622423753865E+28
n5
3.561043094058E+35
2 √n
3590.5230816693
3 √n
234.47964538284
4 √n
59.920973637528
5 √n
26.427926431418
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12891855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12891856 can be divided by 10 positive divisors.
The sum of these divisors (counting 12891856) is 1, the average is 0.1.
Base
System
Value
2
Binary
110001001011011011010000
3
Ternary
220020222022011
4
Quaternary
301023123100
5
Quinary
11300014411
6
Senary
1140152304
8
Octal
61133320
10
Decimal
12891856
12
Duodecimal
4398694
16
Hexadecimal
c4b6d0
20
Vigesimal
40b9cg
36
Base36
7obf4
md5
25685a346ccc42af7e4490cf72211e2e
sha1
eb721495ff68f638538e3c7b809a6c57c6598092
sha256
4fc9b81beb17c75a699d279fa440d25650efba2749370e4eb30538d42da55995
sha512
4241e0aae325afe955decd272291e047ddb064bf04f0f6691520b34570f70feb1b91b39a05defbebe5fd489aeeb2f6f8b0cf4fe1a1e4992c8f1116dbb1658916
ripemd-160
d6600679280d4f0c48d3afeb0c68ac128187c04d
Diameter
25783712
Circumference
81001920.201475
Area
5.2213254548045E+14
Volume
8.9750101189966E+21
Surface area
2.0885301819218E+15
Circumference
81001920.201475
Perimeter
51567424
Area
166199951124736
Diagonal
18231837.599361
Surface area
997199706748416
Volume
2.1426258371071E+21
Space diagonal
22329349.595862
Perimeter
38675568
Area
71966689890877
Altitude
11164674.797931
Surface area
71966689890877
Volume
2.5251087649399E+20
Height
6077279.199787