160988991 is an odd 9-digits composite number following 160988990
and preceding 160988992 . In scientific notation, it is written as 1.60988991 × 10^8.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 106192800 positive integers (up to 160988991) that are relatively prime to 160988991.
160988991 has 16 divisors, whose sum is 216931968
The reverse of 160988991 is 199889061
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 51
Digital Root 6
Name
one hundred sixty million nine hundred eighty-eight thousand nine hundred ninety-one
Scientific notation
1.60988991 × 10^8
Engineering notation
1.60988991 × 10^6
Prime Factorization
3 × 211 × 197 × 1291
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
160988991
Product of the distinct prime numbers
The prime factorization of 160988991 is 3 × 211 × 197 × 1291.
Since it has a total of 4 prime factors.
2 , 4 , 15 , 13 , 146 , 608 , 1548 , 5466 , 95145 , 39264 , 151820 , 374948 , 1202028 , 5966015 , 50830767 , 74191521 , 281831804 , 466325920 , 1753599265 , 5379900755
n×2
321977982
n×3
482966973
n×4
643955964
n×5
804944955
n÷2
80494495.5
n÷3
53662997
n÷3
40247247.75
n÷5
32197798.2
n2
25917455223198081
n3
4.1724249656703E+24
n4
6.7171448524648E+32
n5
1.0813863721991E+41
2 √n
12688.14371766
3 √n
543.99978261057
4 √n
112.64166066629
5 √n
43.788416036294
1 , 3 , 197 , 211 , 591 , 633 , 1291 , 3873 , 41567 , 124701 , 254327 , 272401 , 762981 , 817203 , 53662997 , 160988991
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
-160988990
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 160988991 can be divided by 16 positive divisors.
The sum of these divisors (counting 160988991) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000111111100111111
3
Ternary
102012221002101020
4
Quaternary
21212013330333
5
Quinary
312203121431
6
Senary
23550315223
8
Octal
1146077477
10
Decimal
160988991
12
Duodecimal
45ab8b13
16
Hexadecimal
9987f3f
20
Vigesimal
2a63c9b
36
Base36
2nujwf
md5
e9a88e60f24e83a8cbdb4cae428a5e02
sha1
eab4fa140f8cc57a89013f88d60e7135dd5c75c8
sha256
2a2484f3622882cf671badb62e8d40a542d2c7dd9d813deba027cae2e11276e5
sha512
45619f3fa832e2e4ee76ffa17364f8b9440d376a45dcf0a17faaf4d4e48c454338cb50c64323949508607c3de1481c6b628cada0a298f65bbaffbc1fcfd610b9
ripemd-160
3fbe7961f3fe6404b9c14116416c71699f246ddb
Diameter
321977982
Circumference
1011523662.8689
Area
8.1422086928942E+16
Volume
1.7477412826406E+25
Surface area
3.2568834771577E+17
Circumference
1011523662.8689
Perimeter
643955964
Area
25917455223198081
Diagonal
227672814.46496
Surface area
155504731339188486
Volume
4.1724249656703E+24
Space diagonal
278841111.87125
Perimeter
482966973
Area
1.1222587312368E+16
Altitude
139420555.93562
Surface area
1.1222587312368E+16
Volume
4.9172499786959E+23
Height
75890938.154987