166388889 is an odd 9-digits composite number following 166388888
and preceding 166388890 . In scientific notation, it is written as 1.66388889 × 10^8.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 105887808 positive integers (up to 166388889) that are relatively prime to 166388889.
166388889 has 16 divisors, whose sum is 232155072
The reverse of 166388889 is 988883661
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 57
Digital Root 3
Name
one hundred sixty-six million three hundred eighty-eight thousand eight hundred eighty-nine
Scientific notation
1.66388889 × 10^8
Engineering notation
1.66388889 × 10^6
Prime Factorization
3 × 53 × 37 × 28283
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
166388889
Product of the distinct prime numbers
The prime factorization of 166388889 is 3 × 53 × 37 × 28283.
Since it has a total of 4 prime factors.
7 , 6 , 90 , 77 , 78 , 338 , 1764 , 539 , 57179 , 33638 , 897940 , 554518 , 2329271 , 9941994 , 2681944 , 63398386 , 197917604 , 567798179 , 8829467286 , 5866475000
n×2
332777778
n×3
499166667
n×4
665555556
n×5
831944445
n÷2
83194444.5
n÷3
55462963
n÷3
41597222.25
n÷5
33277777.8
n2
27685262382654321
n3
4.6065200495233E+24
n4
7.6647375319641E+32
n5
1.2753271624201E+41
2 √n
12899.181718233
3 √n
550.01530425734
4 √n
113.57456457426
5 √n
44.078302838613
1 , 3 , 37 , 53 , 111 , 159 , 1961 , 5883 , 28283 , 84849 , 1046471 , 1498999 , 3139413 , 4496997 , 55462963 , 166388889
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
-166388888
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 166388889 can be divided by 16 positive divisors.
The sum of these divisors (counting 166388889) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010101110010010011001
3
Ternary
102121002102122110
4
Quaternary
21322232102121
5
Quinary
320043421024
6
Senary
24302142533
8
Octal
1172562231
10
Decimal
166388889
12
Duodecimal
47881a49
16
Hexadecimal
9eae499
20
Vigesimal
2bjic49
36
Base36
2r2ahl
md5
8bdca51cef1b382dc4d988463af87f0b
sha1
0919d5f9a31ce97599e1e4109dee15e8c735a776
sha256
ffc9bdd9ea53281bbf1007261557c2d6a9defd2cae53588c4e8a92c704343168
sha512
f9094e9e300a151a5d123d3b8f6181ca2d9aba4150a49a0c3ec5756c27a5736e28e2727f41c53f1d62b138167c10c3824dad42d545054c652e9104a0dc22bd00
ripemd-160
d33acac8f2c4c913644b215c57326f7fad968b31
Diameter
332777778
Circumference
1045452222.6427
Area
8.6975816914053E+16
Volume
1.9295746061596E+25
Surface area
3.4790326765621E+17
Circumference
1045452222.6427
Perimeter
665555556
Area
27685262382654321
Diagonal
235309423.45199
Surface area
166111574295925926
Volume
4.6065200495233E+24
Space diagonal
288194009.56294
Perimeter
499166667
Area
1.1988070266908E+16
Altitude
144097004.78147
Surface area
1.1988070266908E+16
Volume
5.4288359411496E+23
Height
78436474.483997