126987289 is an odd 9-digits composite number following 126987288
and preceding 126987290 . In scientific notation, it is written as 1.26987289 × 10^8.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 105572160 positive integers (up to 126987289) that are relatively prime to 126987289.
126987289 has 16 divisors, whose sum is 150575040
The reverse of 126987289 is 982789621
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 52
Digital Root 7
Name
one hundred twenty-six million nine hundred eighty-seven thousand two hundred eighty-nine
Scientific notation
1.26987289 × 10^8
Engineering notation
1.26987289 × 10^6
Prime Factorization
13 × 11 × 109 × 8147
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
126987289
Product of the distinct prime numbers
The prime factorization of 126987289 is 13 × 11 × 109 × 8147.
Since it has a total of 4 prime factors.
2 , 3 , 69 , 21 , 522 , 259 , 6731 , 2138 , 70047 , 70306 , 558000 , 253794 , 2041508 , 701018 , 83855421 , 50070694 , 654419828 , 357116502 , 5501665146 , 2121547078
n×2
253974578
n×3
380961867
n×4
507949156
n×5
634936445
n÷2
63493644.5
n÷3
42329096.333333
n÷3
31746822.25
n÷5
25397457.8
n2
16125771567569521
n3
2.0477680143989E+24
n4
2.6004050864943E+32
n5
3.3021839223573E+40
2 √n
11268.863696043
3 √n
502.63579937392
4 √n
106.15490424866
5 √n
41.759188485202
1 , 11 , 13 , 109 , 143 , 1199 , 1417 , 8147 , 15587 , 89617 , 105911 , 888023 , 1165021 , 9768253 , 11544299 , 126987289
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-126987288
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 126987289 can be divided by 16 positive divisors.
The sum of these divisors (counting 126987289) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100100011010110000011001
3
Ternary
22211221121210221
4
Quaternary
13210122300121
5
Quinary
230002043124
6
Senary
20333440041
8
Octal
744326031
10
Decimal
126987289
12
Duodecimal
36640021
16
Hexadecimal
791ac19
20
Vigesimal
1jdd849
36
Base36
23ls0p
md5
694bb928526a4c6b051cdf78f3d0e7c1
sha1
c2a46551e65c58eec42275ddadd0005bea420859
sha256
4ccd1812c7054e4816a058c31fc139df0acfb4e3fa93f9667014b6b06f39e022
sha512
98fa93213c3e741e97b6f5aca33c706344771a20eb8b28a495aa71c9b6c7c6c5bf501c03e5c3b94c94b6e48c879f321913cee4ad2ca006380bbfd1f7e37161a1
ripemd-160
7186155bbdfcce9c13a4fbf2e321839f4b95de8a
Diameter
253974578
Circumference
797884668.44337
Area
5.0660605490144E+16
Volume
8.5776706003891E+24
Surface area
2.0264242196057E+17
Circumference
797884668.44337
Perimeter
507949156
Area
16125771567569521
Diagonal
179587146.35279
Surface area
96754629405417126
Volume
2.0477680143989E+24
Space diagonal
219948436.46343
Perimeter
380961867
Area
6.98266391657E+15
Altitude
109974218.23172
Surface area
6.98266391657E+15
Volume
2.4133177487973E+23
Height
59862382.117597