168991664 is an even 9-digits composite number following 168991663
and preceding 168991665 . In scientific notation, it is written as 1.68991664 × 10^8.
The sum of its digits is 50. It has a total of 6 prime factors and 20 positive divisors.
There are 81769920 positive integers (up to 168991664) that are relatively prime to 168991664.
168991664 has 20 divisors, whose sum is 337984320
The reverse of 168991664 is 466199861
Previous prime number is 31
Is Prime? no Number parity even Number length 9 Sum of Digits 50 Digital Root 5
Name
one hundred sixty-eight million nine hundred ninety-one thousand six hundred sixty-four
Scientific notation
1.68991664 × 10^8
Engineering notation
1.68991664 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 31 × 340709
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
21123958 Product of the distinct prime numbers
The prime factorization of 168991664 is 2 × 2 × 2 × 2 × 31 × 340709.
Since it has a total of 6 prime factors.
4 , 5 , 45 , 88 , 834 , 722 , 3953 , 171 , 2174 , 61005 , 143487 , 720622 , 5749617 , 5323606 , 40847458 , 24054771 , 127883928 , 868671169 , 4292313336 , 4501277041
n×2
337983328
n×3
506974992
n×4
675966656
n×5
844958320
n÷2
84495832
n÷3
56330554.666667
n÷3
42247916
n÷5
33798332.8
n2
28558182501488896
n3
4.8260947817423E+24
n4
8.1556978778835E+32
n5
1.3782449554648E+41
2 √n12999.679380662
3 √n552.86839090938
4 √n114.01613649244
5 √n44.215348911568
1 , 2 , 4 , 8 , 16 , 31 , 62 , 124 , 248 , 496 , 340709 , 681418 , 1362836 , 2725672 , 5451344 , 10561979 , 21123958 , 42247916 , 84495832 , 168991664
20 divisors
τ Total Divisors
20 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-168991663 Sum of the proper positive divisors of n
A Arithmetic Mean
0.05 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
20 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 168991664 can be divided by 20 positive divisors.
The sum of these divisors (counting 168991664) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000100101001101110110000
3
Ternary
102202222122222112
4
Quaternary
22010221232300
5
Quinary
321230213124
6
Senary
24434024452
8
Octal
1204515660
10
Decimal
168991664
12
Duodecimal
48718128
16
Hexadecimal
a129bb0
20
Vigesimal
2cg3j34
36
Base36
2sm2sw
md5
38d5107b9a1e8c5284e2fd9e529e5da6
sha1
a4dfeb679c113516fe9b0c9696eaeff30e79dc27
sha256
dde8d409d81f360a1047a66ad07e9ae94e00d1c5ae24003e05e7a309f666eb1f
sha512
6eb6449483a7d02a63b5e3227533c256e93342fbd8746cd9fc06ea0f860fe30dd76a9c943b3e1bcac3ad761d738e0d3af36c9f68b4c0e3fda8c37ade4552f686
ripemd-160
fe6fd731b3b5cbc4b3a125f32ca7e4ba0fe2dad8
Diameter
337983328
Circumference
1061805940.2806
Area
8.9718176346554E+16
Volume
2.0215498549133E+25
Surface area
3.5887270538622E+17
Circumference
1061805940.2806
Perimeter
675966656
Area
28558182501488896
Diagonal
238990303.1568
Surface area
171349095008933376
Volume
4.8260947817423E+24
Space diagonal
292702148.10361
Perimeter
506974992
Area
1.2366055766101E+16
Altitude
146351074.0518
Surface area
1.2366055766101E+16
Volume
5.6876072446983E+23
Height
79663434.385599