160991909 is an odd 9-digits composite number following 160991908
and preceding 160991910 . In scientific notation, it is written as 1.60991909 × 10^8.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 148607904 positive integers (up to 160991909) that are relatively prime to 160991909.
160991909 has 4 divisors, whose sum is 173375916
The reverse of 160991909 is 909199061
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
one hundred sixty million nine hundred ninety-one thousand nine hundred nine
Scientific notation
1.60991909 × 10^8
Engineering notation
1.60991909 × 10^6
Prime Factorization
13 × 12383993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
160991909
Product of the distinct prime numbers
The prime factorization of 160991909 is 13 × 12383993.
Since it has a total of 2 prime factors.
3 , 4 , 65 , 1 , 363 , 778 , 368 , 7287 , 62198 , 54084 , 796458 , 540605 , 3440239 , 3251650 , 28623070 , 62846844 , 211881626 , 855313502 , 8535859662 , 1426732748
n×2
321983818
n×3
482975727
n×4
643967636
n×5
804959545
n÷2
80495954.5
n÷3
53663969.666667
n÷3
40247977.25
n÷5
32198381.8
n2
25918394763464281
n3
4.1726518511857E+24
n4
6.7176318711477E+32
n5
1.0814843788953E+41
2 √n
12688.258706379
3 √n
544.00306934002
4 √n
112.64217108339
5 √n
43.788574772206
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
-160991908
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 160991909 can be divided by 4 positive divisors.
The sum of these divisors (counting 160991909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000101010100101
3
Ternary
102012221020101022
4
Quaternary
21212020222211
5
Quinary
312203220114
6
Senary
23550340525
8
Octal
1146105245
10
Decimal
160991909
12
Duodecimal
45aba745
16
Hexadecimal
9988aa5
20
Vigesimal
2a63jf9
36
Base36
2num5h
md5
6c836555d067c43fbf35d0fb391462c6
sha1
5349c96ef28847e1cb6a9c977199728cd20124e4
sha256
7f91ebb051950c4fc8857c0813396062c7cad6e6abeff0d324ca8d29fd42263a
sha512
d096b0e4565fb766053a5aaf966a449a5524d13616ce8ee0783c573b8d000478056b8b3ff37158ed80d91bec4deb7ef348ec5b39a038dbce16acd8cb3b14eae8
ripemd-160
ee7e90ccfd025fbd730f40a35c8919caf59256cd
Diameter
321983818
Circumference
1011541997.2036
Area
8.142503858174E+16
Volume
1.7478363202231E+25
Surface area
3.2570015432696E+17
Circumference
1011541997.2036
Perimeter
643967636
Area
25918394763464281
Diagonal
227676941.14014
Surface area
155510368580785686
Volume
4.1726518511857E+24
Space diagonal
278846165.99551
Perimeter
482975727
Area
1.1222994145237E+16
Altitude
139423082.99775
Surface area
1.1222994145237E+16
Volume
4.91751736584E+23
Height
75892313.713378