168306987 is an odd 9-digits composite number following 168306986
and preceding 168306988 . In scientific notation, it is written as 1.68306987 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 105185280 positive integers (up to 168306987) that are relatively prime to 168306987.
168306987 has 16 divisors, whose sum is 238552992
The reverse of 168306987 is 789603861
Previous prime number is 257
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
one hundred sixty-eight million three hundred six thousand nine hundred eighty-seven
Scientific notation
1.68306987 × 10^8
Engineering notation
1.68306987 × 10^6
Prime Factorization
3 × 17 × 257 × 12841
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
168306987
Product of the distinct prime numbers
The prime factorization of 168306987 is 3 × 17 × 257 × 12841.
Since it has a total of 4 prime factors.
7 , 8 , 34 , 32 , 230 , 1000 , 8084 , 7198 , 24471 , 95370 , 205036 , 958892 , 7552871 , 2101957 , 44164338 , 80707275 , 476329084 , 911869927 , 2908663033 , 7521564652
n×2
336613974
n×3
504920961
n×4
673227948
n×5
841534935
n÷2
84153493.5
n÷3
56102329
n÷3
42076746.75
n÷5
33661397.4
n2
28327241873018169
n3
4.7676727296679E+24
n4
8.0243263213247E+32
n5
1.350550185847E+41
2 √n
12973.318272516
3 √n
552.12072356932
4 √n
113.90047529539
5 √n
44.179462628594
1 , 3 , 17 , 51 , 257 , 771 , 4369 , 12841 , 13107 , 38523 , 218297 , 654891 , 3300137 , 9900411 , 56102329 , 168306987
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
-168306986
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 168306987 can be divided by 16 positive divisors.
The sum of these divisors (counting 168306987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000010000010100100101011
3
Ternary
102201200212210010
4
Quaternary
22002002210223
5
Quinary
321041310422
6
Senary
24411223003
8
Octal
1202024453
10
Decimal
168306987
12
Duodecimal
48447a63
16
Hexadecimal
a08292b
20
Vigesimal
2cbi797
36
Base36
2s7ei3
md5
48f18eec14444caf56cc7d3f90785117
sha1
c6a565e3beb2ba7bb8d32f4eeb58f6b48354c73b
sha256
fd65d4c6bb9d4e12bf8b49e37546833958d714535c6db23e58a8537a9846bd79
sha512
e02582f1cda5e809f6034a418201e10675be385ce917e9d9adae949144340fda07535f0c6732e7e50535a0b2ad0e38dc70b0161891cd2c250265c769116f8f4b
ripemd-160
d91529b2a7495c20a7f59d640820fb7a4ddd694b
Diameter
336613974
Circumference
1057503987.8141
Area
8.8992654964735E+16
Volume
1.997078082966E+25
Surface area
3.5597061985894E+17
Circumference
1057503987.8141
Perimeter
673227948
Area
28327241873018169
Diagonal
238022023.65755
Surface area
169963451238109014
Volume
4.7676727296679E+24
Space diagonal
291516252.75283
Perimeter
504920961
Area
1.226605554059E+16
Altitude
145758126.37642
Surface area
1.226605554059E+16
Volume
5.6187561960439E+23
Height
79340674.552517