20091555 is an odd 8-digits composite number following 20091554
and preceding 20091556 . In scientific notation, it is written as 2.0091555 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 9469440 positive integers (up to 20091555) that are relatively prime to 20091555.
20091555 has 32 divisors, whose sum is 30041280
The reverse of 20091555 is 55519002
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million ninety-one thousand five hundred fifty-five
Scientific notation
2.0091555 × 10^7
Engineering notation
2.0091555 × 10^6
Prime Factorization
9 × 5 × 11 × 37 × 1097
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20091555
Product of the distinct prime numbers
The prime factorization of 20091555 is 9 × 5 × 11 × 37 × 1097.
Since it has a total of 5 prime factors.
9 , 3 , 25 , 79 , 643 , 628 , 9451 , 3640 , 9932 , 56646 , 453000 , 760478 , 962387 , 6412477 , 57689132 , 78893590 , 292193582 , 41407105 , 9518616562 , 2757730846
n×2
40183110
n×3
60274665
n×4
80366220
n×5
100457775
n÷2
10045777.5
n÷3
6697185
n÷3
5022888.75
n÷5
4018311
n2
403670582318025
n3
8.1103697065246E+21
n4
1.6294993902897E+29
n5
3.2739176622473E+36
2 √n
4482.3604272749
3 √n
271.85532873924
4 √n
66.950432614546
5 √n
28.880367155882
1 , 5 , 9 , 11 , 37 , 45 , 55 , 99 , 185 , 333 , 407 , 495 , 1097 , 1665 , 2035 , 3663 , 5485 , 9873 , 12067 , 18315 , 40589 , 49365 , 60335 , 108603 , 202945 , 365301 , 446479 , 543015 , 1826505 , 2232395 , 4018311 , 20091555
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20091554
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20091555 can be divided by 32 positive divisors.
The sum of these divisors (counting 20091555) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100101001001010100011
3
Ternary
1101210202102200
4
Quaternary
1030221022203
5
Quinary
20120412210
6
Senary
1554344243
8
Octal
114511243
10
Decimal
20091555
12
Duodecimal
688b083
16
Hexadecimal
13292a3
20
Vigesimal
65b8hf
36
Base36
bymqr
md5
bd5f6b82b9019f778d2089dc5bda480f
sha1
c6110df46652375c9c26740ed06dc3a3f8363f04
sha256
3e29fe6054ddf837671bebc0853158b4903f9633c53c3daf38ff3827a9cecf1d
sha512
d456db25c8f1e1c900661963af297f6b98c2b9299998ee7cece03d085eb8aee9960e49a02658397e999174721462886c52429c87d3dc416eea5537100f9ea6d2
ripemd-160
47ed4689dec46489902382ba8c27e8668ece0c34
Diameter
40183110
Circumference
126238963.17439
Area
1.2681685358806E+15
Volume
3.3972637183887E+22
Surface area
5.0726741435225E+15
Circumference
126238963.17439
Perimeter
80366220
Area
403670582318025
Diagonal
28413749.570165
Surface area
2422023493908150
Volume
8.1103697065246E+21
Space diagonal
34799594.063065
Perimeter
60274665
Area
1.7479448952393E+14
Altitude
17399797.031532
Surface area
1.7479448952393E+14
Volume
9.5581623623559E+20
Height
9471249.8567217