159991 is an odd 6-digits composite number following 159990
and preceding 159992 . In scientific notation, it is written as 1.59991 × 10^5.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 142560 positive integers (up to 159991) that are relatively prime to 159991.
159991 has 8 divisors, whose sum is 178304
The reverse of 159991 is 199951
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 34
Digital Root 7
Name
one hundred fifty-nine thousand nine hundred ninety-one
Scientific notation
1.59991 × 10^5
Engineering notation
1.59991 × 10^3
Prime Factorization
13 × 31 × 397
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
159991
Product of the distinct prime numbers
The prime factorization of 159991 is 13 × 31 × 397.
Since it has a total of 3 prime factors.
8 , 8 , 49 , 52 , 28 , 769 , 9408 , 5880 , 47933 , 63857 , 621927 , 324994 , 8286413 , 5272265 , 11379457 , 78891953 , 160098864 , 176704631 , 7233228021 , 8726874903
n×2
319982
n×3
479973
n×4
639964
n×5
799955
n÷2
79995.5
n÷3
53330.333333333
n÷3
39997.75
n÷5
31998.2
n2
25597120081
n3
4095308838879271
n4
6.5521255644113E+20
n5
1.0482811211757E+26
2 √n
399.98874984179
3 √n
54.287334406206
4 √n
19.999718744067
5 √n
10.985481842219
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-159990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 159991 can be divided by 8 positive divisors.
The sum of these divisors (counting 159991) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000011110111
3
Ternary
22010110121
4
Quaternary
213003313
5
Quinary
20104431
6
Senary
3232411
8
Octal
470367
10
Decimal
159991
12
Duodecimal
78707
16
Hexadecimal
270f7
20
Vigesimal
jjjb
36
Base36
3fg7
md5
1b19c688058ef1ce575562fc1ea607f3
sha1
dfa7b1419bb9c8782269457528f3379f655cb116
sha256
e0afb0351cc862a4050ae7047cec806321f2bc315a225a87adf66324bb3afc8f
sha512
3264b4318ddf24cb7a029401d8f7c54892e5a8da30b139fcbba61023e884d9e41328523d7bf14345a5c9c190871516eacf8128ac048fe5e090e0d87b31020d83
ripemd-160
3202f089e6e194a0fa4a6bc5a64f9c57fdbc0587
Diameter
319982
Circumference
1005253.100481
Area
80415724399.525
Volume
1.7154389549873E+16
Surface area
321662897598.1
Circumference
1005253.100481
Perimeter
639964
Area
25597120081
Diagonal
226261.44205763
Surface area
153582720486
Volume
4095308838879271
Space diagonal
277112.54075375
Perimeter
479973
Area
11083878126.933
Altitude
138556.27037688
Surface area
11083878126.933
Volume
4.8263677517079E+14
Height
75420.480685878