18806490 is an even 8-digits composite number following 18806489
and preceding 18806491 . In scientific notation, it is written as 1.8806490 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 5015040 positive integers (up to 18806490) that are relatively prime to 18806490.
18806490 has 8 divisors, whose sum is 28836756
The reverse of 18806490 is 09460881
Previous prime number is 45
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighteen million eight hundred six thousand four hundred ninety
Scientific notation
1.8806490 × 10^7
Engineering notation
1.8806490 × 10^6
Prime Factorization
2 × 45 × 208961
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18806490
Product of the distinct prime numbers
The prime factorization of 18806490 is 2 × 45 × 208961.
Since it has a total of 3 prime factors.
7 , 7 , 44 , 96 , 772 , 641 , 199 , 6119 , 58989 , 5445 , 259955 , 506602 , 6825550 , 1851238 , 26566675 , 23180372 , 253200851 , 151103422 , 3069650759 , 2546890280
n×2
37612980
n×3
56419470
n×4
75225960
n×5
94032450
n÷2
9403245
n÷3
6268830
n÷3
4701622.5
n÷5
3761298
n2
353684066120100
n3
6.651555852647E+21
n4
1.2509241862725E+29
n5
2.3525493199891E+36
2 √n
4336.6450165998
3 √n
265.93117295151
4 √n
65.853208096491
5 √n
28.501095245384
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
-18806489
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 18806490 can be divided by 8 positive divisors.
The sum of these divisors (counting 18806490) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000111101111011011011010
3
Ternary
1022101110122200
4
Quaternary
1013233123122
5
Quinary
14303301430
6
Senary
1511031030
8
Octal
107573332
10
Decimal
18806490
12
Duodecimal
636b476
16
Hexadecimal
11ef6da
20
Vigesimal
5hag4a
36
Base36
b736i
md5
c38eb2f3c7d205a0c5fd9154a4ba5d6a
sha1
9d7a9fa4355d6473084b180de9f3d73575370ae0
sha256
caf1f41fbb385f1a92f4a5a827fcba885bd6807b2653e08cd5e6dcf8cd6bcbe7
sha512
aa89c89a22c0cfa60b57bf179e449923662976590f7adcaa5f9c76897ab72b367737df5244c7cb0c965a4431a55a8af86f2ca0ea17af83e6e4ccffc31162a7f7
ripemd-160
f834fc0c2c83e99283f5764a86bf4b30a6ff29ef
Diameter
37612980
Circumference
118164661.64762
Area
1.1111312638147E+15
Volume
2.7861972002157E+22
Surface area
4.4445250552587E+15
Circumference
118164661.64762
Perimeter
75225960
Area
353684066120100
Diagonal
26596393.218634
Surface area
2122104396720600
Volume
6.651555852647E+21
Space diagonal
32573796.192036
Perimeter
56419470
Area
1.5314969308689E+14
Altitude
16286898.096018
Surface area
1.5314969308689E+14
Volume
7.8389337480796E+20
Height
8865464.4062113