18542990 is an even 8-digits composite number following 18542989
and preceding 18542991 . In scientific notation, it is written as 1.8542990 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 7417192 positive integers (up to 18542990) that are relatively prime to 18542990.
18542990 has 8 divisors, whose sum is 33377400
The reverse of 18542990 is 09924581
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million five hundred forty-two thousand nine hundred ninety
Scientific notation
1.8542990 × 10^7
Engineering notation
1.8542990 × 10^6
Prime Factorization
2 × 5 × 1854299
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18542990
Product of the distinct prime numbers
The prime factorization of 18542990 is 2 × 5 × 1854299.
Since it has a total of 3 prime factors.
5 , 2 , 32 , 54 , 199 , 413 , 4974 , 8680 , 98048 , 17870 , 182210 , 17312 , 4817319 , 5008715 , 82466901 , 46726701 , 26709913 , 937615295 , 4566812123 , 1703214532
n×2
37085980
n×3
55628970
n×4
74171960
n×5
92714950
n÷2
9271495
n÷3
6180996.6666667
n÷3
4635747.5
n÷5
3708598
n2
343842478140100
n3
6.3758676337271E+21
n4
1.1822764977353E+29
n5
2.192294127474E+36
2 √n
4306.1572196101
3 √n
264.68332886519
4 √n
65.621316807956
5 √n
28.420777381059
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
-18542989
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 18542990 can be divided by 8 positive divisors.
The sum of these divisors (counting 18542990) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110101111000110001110
3
Ternary
1021220002012102
4
Quaternary
1012233012032
5
Quinary
14221333430
6
Senary
1501235102
8
Octal
106570616
10
Decimal
18542990
12
Duodecimal
6262a92
16
Hexadecimal
11af18e
20
Vigesimal
5fhh9a
36
Base36
b1fv2
md5
3c1e96c26f15fc3432b22f35794faa7c
sha1
c94808498987c6bf948d4b0a755bf5990cd060d4
sha256
3b01ddc1532ce1168007fd62f571e76a945f23af1355ef30208760bbd49127a7
sha512
a6db5ecc1f12e64803ae01a401b4ee05a42490f2dc113bf4bfc320239a3b7c8e23c80a244962de56418e1012897425bb5e5a9171c09cfec2200d0b342476db17
ripemd-160
b898342f7b7647c79d4d80ee72b3e5d35fea1076
Diameter
37085980
Circumference
116509042.31918
Area
1.080213003317E+15
Volume
2.6707171891171E+22
Surface area
4.3208520132682E+15
Circumference
116509042.31918
Perimeter
74171960
Area
343842478140100
Diagonal
26223747.944949
Surface area
2063054868840600
Volume
6.3758676337271E+21
Space diagonal
32117400.804242
Perimeter
55628970
Area
1.4888816048476E+14
Altitude
16058700.402121
Surface area
1.4888816048476E+14
Volume
7.5140320662604E+20
Height
8741249.3149829