33991 is an odd 5-digits composite number following 33990
and preceding 33992 . In scientific notation, it is written as 3.3991 × 10^4.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 32184 positive integers (up to 33991) that are relatively prime to 33991.
33991 has 4 divisors, whose sum is 35800
The reverse of 33991 is 19933
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 25
Digital Root 7
Name
thirty-three thousand nine hundred ninety-one
Scientific notation
3.3991 × 10^4
Engineering notation
3.3991 × 10^3
Prime Factorization
19 × 1789
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
33991
Product of the distinct prime numbers
The prime factorization of 33991 is 19 × 1789.
Since it has a total of 2 prime factors.
9 , 5 , 17 , 25 , 128 , 57 , 4729 , 3846 , 61468 , 42137 , 149046 , 115883 , 6611913 , 9879961 , 35912816 , 92527031 , 977069530 , 283527744 , 6087193211 , 2376157578
n×2
67982
n×3
101973
n×4
135964
n×5
169955
n÷2
16995.5
n÷3
11330.333333333
n÷3
8497.75
n÷5
6798.2
n2
1155388081
n3
39272796261271
n4
1334921617716862561
n5
4.5375320707814E+22
2 √n
184.36648285412
3 √n
32.393259279518
4 √n
13.578161983646
5 √n
8.0588447302954
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
-33990
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 33991 can be divided by 4 positive divisors.
The sum of these divisors (counting 33991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000010011000111
3
Ternary
1201121221
4
Quaternary
20103013
5
Quinary
2041431
6
Senary
421211
8
Octal
102307
10
Decimal
33991
12
Duodecimal
17807
16
Hexadecimal
84c7
20
Vigesimal
44jb
36
Base36
q87
md5
57362b724248d953ff60c2d627e7dafa
sha1
dc009073bd9fc7ba3dd59c376a0b99a66854f7b7
sha256
c9e8eef4a1a961e0db54ebae71032be10666085ed569a3e3aa941db983665a8e
sha512
67864256aff03f3c5b957e752893fef4bb93de1d697de3a16459f1bfec75b11d4378d2e543185ebd4a10628d58c0f856b5261a7cd9ea1f928027ad788383b9fb
ripemd-160
17bd6e07b14293c7af2df7ac95014fc5b0da0b71
Diameter
67982
Circumference
213571.75177634
Area
3629758707.3148
Volume
1.6450550429378E+14
Surface area
14519034829.259
Circumference
213571.75177634
Perimeter
135964
Area
1155388081
Diagonal
48070.533198624
Surface area
6932328486
Volume
39272796261271
Space diagonal
58874.139000074
Perimeter
101973
Area
500297714.68788
Altitude
29437.069500037
Surface area
500297714.68788
Volume
4628343425417.1
Height
16023.511066208