18213811 is an odd 8-digits composite number following 18213810
and preceding 18213812 . In scientific notation, it is written as 1.8213811 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 13860000 positive integers (up to 18213811) that are relatively prime to 18213811.
18213811 has 8 divisors, whose sum is 19939248
The reverse of 18213811 is 11831281
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million two hundred thirteen thousand eight hundred eleven
Scientific notation
1.8213811 × 10^7
Engineering notation
1.8213811 × 10^6
Prime Factorization
301 × 11 × 5501
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18213811
Product of the distinct prime numbers
The prime factorization of 18213811 is 301 × 11 × 5501.
Since it has a total of 3 prime factors.
1 , 8 , 75 , 34 , 13 , 399 , 36 , 4944 , 7655 , 51616 , 295478 , 131174 , 2586350 , 7904802 , 48182515 , 74723731 , 817717789 , 245816263 , 3275102918 , 2657839830
n×2
36427622
n×3
54641433
n×4
72855244
n×5
91069055
n÷2
9106905.5
n÷3
6071270.3333333
n÷3
4553452.75
n÷5
3642762.2
n2
331742911143721
n3
6.0423026841615E+21
n4
1.1005335909411E+29
n5
2.0044910824553E+36
2 √n
4267.7641687422
3 √n
263.10773054267
4 √n
65.328126934286
5 √n
28.319146823547
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18213810
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18213811 can be divided by 8 positive divisors.
The sum of these divisors (counting 18213811) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101011110101110110011
3
Ternary
1021021100122121
4
Quaternary
1011132232303
5
Quinary
14130320221
6
Senary
1450215111
8
Octal
105365663
10
Decimal
18213811
12
Duodecimal
6124497
16
Hexadecimal
115ebb3
20
Vigesimal
5dgeab
36
Base36
audv7
md5
8521e3783007d56ae4add79d12b2b75a
sha1
2138e964d06bc77a657eebe0642ab5b2960769b4
sha256
7a4ace129ad108bd936edbeca695995fed80ff05b10d8b6022dec0d58551877c
sha512
11482c3e3229ffcdab57250fcb85f6d90d78628b4d6da2d5eb631c8ebbcded692e81e2aec6a43f59fa074f157595a005177fef1be15b0d8d0250fe644bd83a13
ripemd-160
3aad38dd638da8fea7d84eb099391c43c826a169
Diameter
36427622
Circumference
114440749.66295
Area
1.0422010925296E+15
Volume
2.530993829777E+22
Surface area
4.1688043701184E+15
Circumference
114440749.66295
Perimeter
72855244
Area
331742911143721
Diagonal
25758218.5387
Surface area
1990457466862326
Volume
6.0423026841615E+21
Space diagonal
31547246.051457
Perimeter
54641433
Area
1.4364889428793E+14
Altitude
15773623.025728
Surface area
1.4364889428793E+14
Volume
7.1209220032538E+20
Height
8586072.8462334