90201991 is an odd 8-digits composite number following 90201990
and preceding 90201992 . In scientific notation, it is written as 9.0201991 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 82001700 positive integers (up to 90201991) that are relatively prime to 90201991.
90201991 has 6 divisors, whose sum is 99147776
The reverse of 90201991 is 19910209
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
ninety million two hundred one thousand nine hundred ninety-one
Scientific notation
9.0201991 × 10^7
Engineering notation
9.0201991 × 10^6
Prime Factorization
11 × 11 × 745471
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
8200181
Product of the distinct prime numbers
The prime factorization of 90201991 is 11 × 11 × 745471.
Since it has a total of 3 prime factors.
2 , 10 , 28 , 70 , 154 , 387 , 5582 , 2563 , 22625 , 95639 , 334965 , 925674 , 6830090 , 3271112 , 88019165 , 86862583 , 250117741 , 37841799 , 2767466616 , 7497579528
n×2
180403982
n×3
270605973
n×4
360807964
n×5
451009955
n÷2
45100995.5
n÷3
30067330.333333
n÷3
22550497.75
n÷5
18040398.2
n2
8136399180364081
n3
7.3391940563961E+23
n4
6.6200991622229E+31
n5
5.9714612504994E+39
2 √n
9497.4728744019
3 √n
448.47548468282
4 √n
97.454978705051
5 √n
38.9980799003
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-90201990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 90201991 can be divided by 6 positive divisors.
The sum of these divisors (counting 90201991) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
101011000000101111110000111
3
Ternary
20021201201212111
4
Quaternary
11120011332013
5
Quinary
141042430431
6
Senary
12541201451
8
Octal
530057607
10
Decimal
90201991
12
Duodecimal
26260287
16
Hexadecimal
5605f87
20
Vigesimal
183f4jb
36
Base36
1hpcav
md5
f780f0d835fcb702ff06d1750391f937
sha1
efab1f526f0da5b2b9da54d3bdcc972468a8172b
sha256
1657cadbb99d23d27f3e64cf80288331932a8627fa47ade8d35d4ef697cb8db3
sha512
ab2ac6923fa92f95eec7eacd701ddf98f6b4e617a6be1e94b8887d1ca33f37bfd29cc7d4e6efddad95c511bdf5ac13ce458eee0688e18c4bff3727ad18939025
ripemd-160
4fd0147f4ac71c8cd183392354ee7bb682a794b7
Diameter
180403982
Circumference
566755824.52955
Area
2.5561251891706E+16
Volume
3.0742344174458E+24
Surface area
1.0224500756682E+17
Circumference
566755824.52955
Perimeter
360807964
Area
8136399180364081
Diagonal
127564879.02526
Surface area
48818395082184486
Volume
7.3391940563961E+23
Space diagonal
156234431.35587
Perimeter
270605973
Area
3.5231641927631E+15
Altitude
78117215.677935
Surface area
3.5231641927631E+15
Volume
8.6493231428695E+22
Height
42521626.341752