12895987 is an odd 8-digits composite number following 12895986
and preceding 12895988 . In scientific notation, it is written as 1.2895987 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 11903976 positive integers (up to 12895987) that are relatively prime to 12895987.
12895987 has 4 divisors, whose sum is 13888000
The reverse of 12895987 is 78959821
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twelve million eight hundred ninety-five thousand nine hundred eighty-seven
Scientific notation
1.2895987 × 10^7
Engineering notation
1.2895987 × 10^6
Prime Factorization
13 × 991999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12895987
Product of the distinct prime numbers
The prime factorization of 12895987 is 13 × 991999.
Since it has a total of 2 prime factors.
10 , 3 , 22 , 43 , 387 , 473 , 3402 , 459 , 66840 , 54196 , 716613 , 385346 , 8753908 , 734855 , 51116249 , 1219449 , 735671117 , 583824925 , 8725638262 , 7322777999
n×2
25791974
n×3
38687961
n×4
51583948
n×5
64479935
n÷2
6447993.5
n÷3
4298662.3333333
n÷3
3223996.75
n÷5
2579197.4
n2
166306480704169
n3
2.1446862131767E+21
n4
2.7657845524206E+28
n5
3.5667521632817E+35
2 √n
3591.0982999634
3 √n
234.50468785854
4 √n
59.925773252945
5 √n
26.429619900124
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12895986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12895987 can be divided by 4 positive divisors.
The sum of these divisors (counting 12895987) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001001100011011110011
3
Ternary
220021011222011
4
Quaternary
301030123303
5
Quinary
11300132422
6
Senary
1140223351
8
Octal
61143363
10
Decimal
12895987
12
Duodecimal
439ab57
16
Hexadecimal
c4c6f3
20
Vigesimal
40bjj7
36
Base36
7oelv
md5
98a71209fb3cd754a69022b2df60aca8
sha1
71038d13e65ee05d6efd2f6293836580714c0037
sha256
c70222e8d75cf49c31912e320eda8153b464419902fa01d68e10714dff070aa8
sha512
72a61377602d82f6facbc3e6355486f8412eeb4bb58083eda8d6e6ff11d820280d27b037c45f781c386beff5a0b72f38814685ff004df525ca20952414998a67
ripemd-160
bcfea83b46fc0c0369243ee678a4121112b3ae75
Diameter
25791974
Circumference
81027876.039979
Area
5.2246721802459E+14
Volume
8.983640602095E+21
Surface area
2.0898688720984E+15
Circumference
81027876.039979
Perimeter
51583948
Area
166306480704169
Diagonal
18237679.715587
Surface area
997838884225014
Volume
2.1446862131767E+21
Space diagonal
22336504.697748
Perimeter
38687961
Area
72012818551898
Altitude
11168252.348874
Surface area
72012818551898
Volume
2.5275369414243E+20
Height
6079226.5718624