168889681 is an odd 9-digits composite number following 168889680
and preceding 168889682 . In scientific notation, it is written as 1.68889681 × 10^8.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 164961972 positive integers (up to 168889681) that are relatively prime to 168889681.
168889681 has 4 divisors, whose sum is 172817392
The reverse of 168889681 is 186988861
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 55
Digital Root 1
Name
one hundred sixty-eight million eight hundred eighty-nine thousand six hundred eighty-one
Scientific notation
1.68889681 × 10^8
Engineering notation
1.68889681 × 10^6
Prime Factorization
43 × 3927667
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
168889681
Product of the distinct prime numbers
The prime factorization of 168889681 is 43 × 3927667.
Since it has a total of 2 prime factors.
4 , 8 , 84 , 93 , 154 , 579 , 7239 , 6894 , 52351 , 37969 , 899098 , 589213 , 3424573 , 6644476 , 45096117 , 10403302 , 6817794 , 282636920 , 6538773962 , 6744041142
n×2
337779362
n×3
506669043
n×4
675558724
n×5
844448405
n÷2
84444840.5
n÷3
56296560.333333
n÷3
42222420.25
n÷5
33777936.2
n2
28523724348281761
n3
4.8173627061132E+24
n4
8.1360285069676E+32
n5
1.3740912591487E+41
2 √n
12995.756268875
3 √n
552.75715362187
4 √n
113.99893099882
5 √n
44.210011011812
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
-168889680
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 168889681 can be divided by 4 positive divisors.
The sum of these divisors (counting 168889681) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100010000110101010001
3
Ternary
102202210111002101
4
Quaternary
22010100311101
5
Quinary
321213432211
6
Senary
24431520401
8
Octal
1204206521
10
Decimal
168889681
12
Duodecimal
48689101
16
Hexadecimal
a110d51
20
Vigesimal
2cfb441
36
Base36
2sjw41
md5
1dc47cc2f68ed56a9abed37958f254ae
sha1
acd04d5fb6afe529be6c65d32506abff79c902b1
sha256
42818c1a45d0f62fa00f998f650d35b8a026f917a9629401f7b452612a92af1f
sha512
c84698f6edf399e8dd4155744044317c685238145ca491283ba459ebe3f4050223b8cfcc982dd1985a53254c4cbf9990f19d5eb349d5eaf6f25cf80031aba715
ripemd-160
516121e1f4aa6db52e91d8d4950d4e98ed4f0c79
Diameter
337779362
Circumference
1061165162.1934
Area
8.9609922865582E+16
Volume
2.017892171627E+25
Surface area
3.5843969146233E+17
Circumference
1061165162.1934
Perimeter
675558724
Area
28523724348281761
Diagonal
238846077.41507
Surface area
171142346089690566
Volume
4.8173627061132E+24
Space diagonal
292525508.3661
Perimeter
506669043
Area
1.2351134948078E+16
Altitude
146262754.18305
Surface area
1.2351134948078E+16
Volume
5.6773163948797E+23
Height
79615359.138355