18083891 is an odd 8-digits composite number following 18083890
and preceding 18083892 . In scientific notation, it is written as 1.8083891 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 15407280 positive integers (up to 18083891) that are relatively prime to 18083891.
18083891 has 12 divisors, whose sum is 21162960
The reverse of 18083891 is 19838081
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million eighty-three thousand eight hundred ninety-one
Scientific notation
1.8083891 × 10^7
Engineering notation
1.8083891 × 10^6
Prime Factorization
7 × 7 × 181 × 2039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2583413
Product of the distinct prime numbers
The prime factorization of 18083891 is 7 × 7 × 181 × 2039.
Since it has a total of 4 prime factors.
9 , 3 , 12 , 66 , 659 , 535 , 8819 , 1865 , 30621 , 88998 , 747121 , 604234 , 2122372 , 9807507 , 5944729 , 18794998 , 4285582 , 998051699 , 8630677476 , 8432668301
n×2
36167782
n×3
54251673
n×4
72335564
n×5
90419455
n÷2
9041945.5
n÷3
6027963.6666667
n÷3
4520972.75
n÷5
3616778.2
n2
327027113699881
n3
5.9139226781933E+21
n4
1.0694673309487E+29
n5
1.9340130640938E+36
2 √n
4252.5158435919
3 √n
262.48065042558
4 √n
65.211316836818
5 √n
28.278630686192
1 , 7 , 49 , 181 , 1267 , 2039 , 8869 , 14273 , 99911 , 369059 , 2583413 , 18083891
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18083890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18083891 can be divided by 12 positive divisors.
The sum of these divisors (counting 18083891) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000100111111000000110011
3
Ternary
1021000202102202
4
Quaternary
1010333000303
5
Quinary
14112141031
6
Senary
1443333415
8
Octal
104770063
10
Decimal
18083891
12
Duodecimal
608126b
16
Hexadecimal
113f033
20
Vigesimal
5d09eb
36
Base36
arlmb
md5
43adfd13ea32afaae7c902a86dbc642d
sha1
8f542ecfd404a35cd40402885fc3971599e35b2c
sha256
632bb9ccf17ad9a73afd646155517d96133a52f0e6137b689050a1cd36c4269e
sha512
ad854d5471a29a52a6f969a9ae6847aea6b9d1facd795469c913b73de90a70f5fbf3b280470c6200875d73a73b24040d1a95f64b44ea5c26725572f726091831
ripemd-160
df1f8773e55bb751e73656d804a3a3b5a5ad2f3b
Diameter
36167782
Circumference
113624438.22784
Area
1.0273859779242E+15
Volume
2.477218138628E+22
Surface area
4.1095439116969E+15
Circumference
113624438.22784
Perimeter
72335564
Area
327027113699881
Diagonal
25574483.912677
Surface area
1962162682199286
Volume
5.9139226781933E+21
Space diagonal
31322218.010538
Perimeter
54251673
Area
1.416068940952E+14
Altitude
15661109.005269
Surface area
1.416068940952E+14
Volume
6.9696247152723E+20
Height
8524827.9708923