12981256 is an even 8-digits composite number following 12981255
and preceding 12981257 . In scientific notation, it is written as 1.2981256 × 10^7.
The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors.
There are 5996160 positive integers (up to 12981256) that are relatively prime to 12981256.
12981256 has 32 divisors, whose sum is 26258400
The reverse of 12981256 is 65218921
Previous prime number is 41
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million nine hundred eighty-one thousand two hundred fifty-six
Scientific notation
1.2981256 × 10^7
Engineering notation
1.2981256 × 10^6
Prime Factorization
2 × 2 × 2 × 19 × 41 × 2083
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
3245314
Product of the distinct prime numbers
The prime factorization of 12981256 is 2 × 2 × 2 × 19 × 41 × 2083.
Since it has a total of 6 prime factors.
8 , 4 , 68 , 86 , 479 , 968 , 3226 , 5768 , 5533 , 70118 , 919010 , 418022 , 4487104 , 7030097 , 35843104 , 55356383 , 682508054 , 743810094 , 2998093699 , 888883824
n×2
25962512
n×3
38943768
n×4
51925024
n×5
64906280
n÷2
6490628
n÷3
4327085.3333333
n÷3
3245314
n÷5
2596251.2
n2
168513007337536
n3
2.1875104875784E+21
n4
2.839663364194E+28
n5
3.6862397084424E+35
2 √n
3602.9510127117
3 √n
235.02040565225
4 √n
60.024586735034
5 √n
26.464478656607
1 , 2 , 4 , 8 , 19 , 38 , 41 , 76 , 82 , 152 , 164 , 328 , 779 , 1558 , 2083 , 3116 , 4166 , 6232 , 8332 , 16664 , 39577 , 79154 , 85403 , 158308 , 170806 , 316616 , 341612 , 683224 , 1622657 , 3245314 , 6490628 , 12981256
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12981255
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12981256 can be divided by 32 positive divisors.
The sum of these divisors (counting 12981256) is 1, the average is 0.03125.
Base
System
Value
2
Binary
110001100001010000001000
3
Ternary
220102111221021
4
Quaternary
301201100020
5
Quinary
11310400011
6
Senary
1142122224
8
Octal
61412010
10
Decimal
12981256
12
Duodecimal
4420374
16
Hexadecimal
c61408
20
Vigesimal
412d2g
36
Base36
7q8eg
md5
3f0e31dae272c461eb51525e21c05418
sha1
1ce54af8b534ada9cf77d67b323b7d4084147be2
sha256
f876d20c3686f59a0a7311bbb174bfc6c059dac3608838d3f0e093b2693f5f7f
sha512
afbf63662ec36334a4f3658cc7cc5de157c8b6ecd38853bef5f1b2ee291c4d66a1c221eb601a99df3be3fd8b6be649f2d1ba8443b1e345291c5388f05cf34b3b
ripemd-160
d4d6f373459d747c91a1b417c71d8530a2ee4047
Diameter
25962512
Circumference
81563636.967937
Area
5.2939922588593E+14
Volume
9.163022503236E+21
Surface area
2.1175969035437E+15
Circumference
81563636.967937
Perimeter
51925024
Area
168513007337536
Diagonal
18358268.291837
Surface area
1011078044025216
Volume
2.1875104875784E+21
Space diagonal
22484194.938058
Perimeter
38943768
Area
72968272611210
Altitude
11242097.469029
Surface area
72968272611210
Volume
2.5780058328057E+20
Height
6119422.7639457