18012911 is an odd 8-digits composite number following 18012910
and preceding 18012912 . In scientific notation, it is written as 1.8012911 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 14446080 positive integers (up to 18012911) that are relatively prime to 18012911.
18012911 has 16 divisors, whose sum is 21925440
The reverse of 18012911 is 11921081
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million twelve thousand nine hundred eleven
Scientific notation
1.8012911 × 10^7
Engineering notation
1.8012911 × 10^6
Prime Factorization
7 × 17 × 229 × 661
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18012911
Product of the distinct prime numbers
The prime factorization of 18012911 is 7 × 17 × 229 × 661.
Since it has a total of 4 prime factors.
2 , 3 , 79 , 28 , 509 , 166 , 8345 , 3063 , 13349 , 51680 , 181497 , 617797 , 2583166 , 4250338 , 67130085 , 49557109 , 176136075 , 369568380 , 1155094598 , 8899954436
n×2
36025822
n×3
54038733
n×4
72051644
n×5
90064555
n÷2
9006455.5
n÷3
6004303.6666667
n÷3
4503227.75
n÷5
3602582.2
n2
324464962693921
n3
5.8445584956239E+21
n4
1.0527751201597E+29
n5
1.8963544542451E+36
2 √n
4244.1619903109
3 √n
262.13678443076
4 √n
65.14723317464
5 √n
28.256396798458
1 , 7 , 17 , 119 , 229 , 661 , 1603 , 3893 , 4627 , 11237 , 27251 , 78659 , 151369 , 1059583 , 2573273 , 18012911
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18012910
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18012911 can be divided by 16 positive divisors.
The sum of these divisors (counting 18012911) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000100101101101011101111
3
Ternary
1020220011001212
4
Quaternary
1010231223233
5
Quinary
14102403121
6
Senary
1442025035
8
Octal
104555357
10
Decimal
18012911
12
Duodecimal
604817b
16
Hexadecimal
112daef
20
Vigesimal
5cbc5b
36
Base36
aq2un
md5
b9e29b024f42d2692183171f887a9353
sha1
6c6039eaa1a2893d6e8b520b277dc2f5f496cfb4
sha256
bcfeb63b8123e227d956b718be5e0b69a22c5df2dd2ba54b29c489009ea1ee97
sha512
537f6b1c3c4c3ad7d1b0cea6312c634abc48ae60da2d751c65a7dbe1925b4bc5f136d188d3d62357274a8443c04431288bc7e166cd07d9fd077ec85a54f33126
ripemd-160
931b15c229c54bb45b1de03d7d7be5f7f07080fd
Diameter
36025822
Circumference
113178457.73473
Area
1.0193367431465E+15
Volume
2.4481629377771E+22
Surface area
4.077346972586E+15
Circumference
113178457.73473
Perimeter
72051644
Area
324464962693921
Diagonal
25474103.03402
Surface area
1946789776163526
Volume
5.8445584956239E+21
Space diagonal
31199277.044216
Perimeter
54038733
Area
1.4049745016545E+14
Altitude
15599638.522108
Surface area
1.4049745016545E+14
Volume
6.8878782421619E+20
Height
8491367.6780065