168981917 is an odd 9-digits composite number following 168981916
and preceding 168981918 . In scientific notation, it is written as 1.68981917 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 153775440 positive integers (up to 168981917) that are relatively prime to 168981917.
168981917 has 12 divisors, whose sum is 185570784
The reverse of 168981917 is 719189861
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 50
Digital Root 5
Name
one hundred sixty-eight million nine hundred eighty-one thousand nine hundred seventeen
Scientific notation
1.68981917 × 10^8
Engineering notation
1.68981917 × 10^6
Prime Factorization
13 × 13 × 71 × 14083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12998609
Product of the distinct prime numbers
The prime factorization of 168981917 is 13 × 13 × 71 × 14083.
Since it has a total of 4 prime factors.
1 , 6 , 69 , 50 , 518 , 874 , 4507 , 2123 , 27155 , 95428 , 166905 , 7230 , 9712833 , 3750900 , 62690365 , 91469881 , 595662855 , 609638492 , 7333393218 , 2080652788
n×2
337963834
n×3
506945751
n×4
675927668
n×5
844909585
n÷2
84490958.5
n÷3
56327305.666667
n÷3
42245479.25
n÷5
33796383.4
n2
28554888272994889
n3
4.8252597600915E+24
n4
8.1538164428322E+32
n5
1.3778475333759E+41
2 √n
12999.304481394
3 √n
552.85776136769
4 √n
114.01449241826
5 √n
44.214838854516
1 , 13 , 71 , 169 , 923 , 11999 , 14083 , 183079 , 999893 , 2380027 , 12998609 , 168981917
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-168981916
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 168981917 can be divided by 12 positive divisors.
The sum of these divisors (counting 168981917) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000100100111010110011101
3
Ternary
102202222011121112
4
Quaternary
22010213112131
5
Quinary
321224410132
6
Senary
24433511405
8
Octal
1204472635
10
Decimal
168981917
12
Duodecimal
48712565
16
Hexadecimal
a12759d
20
Vigesimal
2cg2efh
36
Base36
2slva5
md5
211f16b1350d5c2fed42a3f2560490d8
sha1
b8e27a45066e4fda2f0232f268086ccaf7df1877
sha256
d14050dad190afdc39fac91aee5b5f97e8a6c93abb745d2d765efc8cc9565ffc
sha512
fd658ebbb16c0c27f746ddc2149eb61aa89809334d333e5fb773eab8c55657e972fccd544a18cf7de49bfc528057cc2c1f9a2cecda909f4c22f3a9fd5fce6e90
ripemd-160
78208190115b8886f5901d2b9c0a470f422a49b6
Diameter
337963834
Circumference
1061744698.0734
Area
8.9707827222518E+16
Volume
2.0212000818621E+25
Surface area
3.5883130889007E+17
Circumference
1061744698.0734
Perimeter
675927668
Area
28554888272994889
Diagonal
238976518.8172
Surface area
171329329637969334
Volume
4.8252597600915E+24
Space diagonal
292685265.80439
Perimeter
506945751
Area
1.236462932332E+16
Altitude
146342632.90219
Surface area
1.236462932332E+16
Volume
5.6866231622455E+23
Height
79658839.605735