18019091 is an odd 8-digits composite number following 18019090
and preceding 18019092 . In scientific notation, it is written as 1.8019091 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 17437800 positive integers (up to 18019091) that are relatively prime to 18019091.
18019091 has 4 divisors, whose sum is 18600384
The reverse of 18019091 is 19091081
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighteen million nineteen thousand ninety-one
Scientific notation
1.8019091 × 10^7
Engineering notation
1.8019091 × 10^6
Prime Factorization
31 × 581261
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18019091
Product of the distinct prime numbers
The prime factorization of 18019091 is 31 × 581261.
Since it has a total of 2 prime factors.
8 , 2 , 11 , 67 , 266 , 930 , 3956 , 1755 , 31393 , 10833 , 28453 , 573886 , 3001993 , 9000147 , 61589596 , 26330921 , 920474210 , 453905420 , 4409459591 , 4626473489
n×2
36038182
n×3
54057273
n×4
72076364
n×5
90095455
n÷2
9009545.5
n÷3
6006363.6666667
n÷3
4504772.75
n÷5
3603818.2
n2
324687640466281
n3
5.8505761401372E+21
n4
1.0542206387156E+29
n5
1.8996097623095E+36
2 √n
4244.8899867959
3 √n
262.16675959867
4 √n
65.15282025205
5 √n
28.258335414294
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
-18019090
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 18019091 can be divided by 4 positive divisors.
The sum of these divisors (counting 18019091) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000100101111001100010011
3
Ternary
1020220110112202
4
Quaternary
1010233030103
5
Quinary
14103102331
6
Senary
1442113415
8
Octal
104571423
10
Decimal
18019091
12
Duodecimal
604b86b
16
Hexadecimal
112f313
20
Vigesimal
5cc7eb
36
Base36
aq7mb
md5
76142cc0ce65b4a5349c4dfe82f2c158
sha1
4959dcdf17aba2aa43d6cf50da7c581c29970878
sha256
5222767248a042dc5680cf3ae4d29ddf4ff6110257de9cfb238fa2029e3f8eb0
sha512
1cadec95cba5629086079696402f515768b594d3083bdaa2d8f7eba7c4f6b7d4a8ae19cae404a6340f91c0e379daf5647866b355b7844dd7651cf9ebec442c2a
ripemd-160
45f00b97c4de7eaca73ef43840b6ca8a1df58ef5
Diameter
36038182
Circumference
113217287.81993
Area
1.0200363060003E+15
Volume
2.4506836028164E+22
Surface area
4.0801452240011E+15
Circumference
113217287.81993
Perimeter
72076364
Area
324687640466281
Diagonal
25482842.873835
Surface area
1948125842797686
Volume
5.8505761401372E+21
Space diagonal
31209981.118207
Perimeter
54057273
Area
1.4059387246931E+14
Altitude
15604990.559104
Surface area
1.4059387246931E+14
Volume
6.8949701042321E+20
Height
8494280.957945