12891898 is an even 8-digits composite number following 12891897
and preceding 12891899 . In scientific notation, it is written as 1.2891898 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 6404736 positive integers (up to 12891898) that are relatively prime to 12891898.
12891898 has 8 divisors, whose sum is 19461492
The reverse of 12891898 is 89819821
Previous prime number is 157
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
twelve million eight hundred ninety-one thousand eight hundred ninety-eight
Scientific notation
1.2891898 × 10^7
Engineering notation
1.2891898 × 10^6
Prime Factorization
2 × 157 × 41057
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12891898
Product of the distinct prime numbers
The prime factorization of 12891898 is 2 × 157 × 41057.
Since it has a total of 3 prime factors.
2 , 10 , 49 , 65 , 970 , 632 , 3391 , 5708 , 42580 , 78877 , 750881 , 631675 , 1850255 , 4503234 , 19804059 , 75051083 , 597044576 , 386232514 , 7677843168 , 3728294038
n×2
25783796
n×3
38675694
n×4
51567592
n×5
64459490
n÷2
6445949
n÷3
4297299.3333333
n÷3
3222974.5
n÷5
2578379.6
n2
166201034042404
n3
2.1426467783692E+21
n4
2.7622783716764E+28
n5
3.5611011015259E+35
2 √n
3590.5289303945
3 √n
234.47990001735
4 √n
59.921022441164
5 √n
26.427943651149
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
-12891897
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 12891898 can be divided by 8 positive divisors.
The sum of these divisors (counting 12891898) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001011011011111010
3
Ternary
220020222100201
4
Quaternary
301023123322
5
Quinary
11300020043
6
Senary
1140152414
8
Octal
61133372
10
Decimal
12891898
12
Duodecimal
439870a
16
Hexadecimal
c4b6fa
20
Vigesimal
40b9ei
36
Base36
7obga
md5
ca940dd7cce7dd1991f9567e3887ad06
sha1
bcc5722a3427b371f945014ec508a7d0812cd3be
sha256
714be5d4178bcb89c8e8d3d1d806dd3691988252875347cebb7edc1162d58e99
sha512
dfcb9130d8fc06016ed5df7c124c567bfd3a15fa906b18d02d1930d8ee0d7412b79ba004fded4481a6b048234cd9be4f6fa793088327a8f243b0038a3e107e13
ripemd-160
94d9cac4418ca132bd0c079a8babeeb8aa4d8c0b
Diameter
25783796
Circumference
81002184.095258
Area
5.2213594756664E+14
Volume
8.97509783755E+21
Surface area
2.0885437902666E+15
Circumference
81002184.095258
Perimeter
51567592
Area
166201034042404
Diagonal
18231896.996331
Surface area
997206204254424
Volume
2.1426467783692E+21
Space diagonal
22329422.341996
Perimeter
38675694
Area
71967158807982
Altitude
11164711.170998
Surface area
71967158807982
Volume
2.525133444454E+20
Height
6077298.9987769