166386987 is an odd 9-digits composite number following 166386986
and preceding 166386988 . In scientific notation, it is written as 1.66386987 × 10^8.
The sum of its digits is 54. It has a total of 5 prime factors and 16 positive divisors.
There are 102391776 positive integers (up to 166386987) that are relatively prime to 166386987.
166386987 has 16 divisors, whose sum is 265461280
The reverse of 166386987 is 789683661
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 54
Digital Root 9
Name
one hundred sixty-six million three hundred eighty-six thousand nine hundred eighty-seven
Scientific notation
1.66386987 × 10^8
Engineering notation
1.66386987 × 10^6
Prime Factorization
3 × 3 × 3 × 13 × 474037
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18487443
Product of the distinct prime numbers
The prime factorization of 166386987 is 3 × 3 × 3 × 13 × 474037.
Since it has a total of 5 prime factors.
6 , 4 , 72 , 33 , 698 , 783 , 6838 , 5373 , 41453 , 61382 , 912182 , 380496 , 8567594 , 4109007 , 27278777 , 148304 , 33850520 , 542627545 , 5833533570 , 234583087
n×2
332773974
n×3
499160961
n×4
665547948
n×5
831934935
n÷2
83193493.5
n÷3
55462329
n÷3
41596746.75
n÷5
33277397.4
n2
27684629442938169
n3
4.606362079222E+24
n4
7.664387073928E+32
n5
1.2752542724326E+41
2 √n
12899.107992416
3 √n
550.01320849822
4 √n
113.57424000369
5 √n
44.07820206588
1 , 3 , 9 , 13 , 27 , 39 , 117 , 351 , 474037 , 1422111 , 4266333 , 6162481 , 12798999 , 18487443 , 55462329 , 166386987
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
-166386986
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 166386987 can be divided by 16 positive divisors.
The sum of these divisors (counting 166386987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010101101110100101011
3
Ternary
102121002100001000
4
Quaternary
21322231310223
5
Quinary
320043340422
6
Senary
24302130043
8
Octal
1172556453
10
Decimal
166386987
12
Duodecimal
47880923
16
Hexadecimal
9eadd2b
20
Vigesimal
2bji797
36
Base36
2r290r
md5
67e6a96b758494ff2eec5fa9f4566702
sha1
5da569c5233205b130909de12b7aaafdeb00d0af
sha256
e0b68422a00b309448d5983d208e73ab89296a5227f06224b34b5c6e60a8753c
sha512
80849503e96393e0b37a50c514ec51f987beeb269113c6567f50f50d520ac1d620427c9d3f5bcae965b909526962f71b19aa174bbee6f421067576b0e234b51d
ripemd-160
7ecc7419441e28d119cb51ca2656f3e1c008b5e5
Diameter
332773974
Circumference
1045440272.0243
Area
8.697382847529E+16
Volume
1.9295084357144E+25
Surface area
3.4789531390116E+17
Circumference
1045440272.0243
Perimeter
665547948
Area
27684629442938169
Diagonal
235306733.6178
Surface area
166107776657629014
Volume
4.606362079222E+24
Space diagonal
288190715.2023
Perimeter
499160961
Area
1.1987796195972E+16
Altitude
144095357.60115
Surface area
1.1987796195972E+16
Volume
5.428649771364E+23
Height
78435577.872599