18990537 is an odd 8-digits composite number following 18990536
and preceding 18990538 . In scientific notation, it is written as 1.8990537 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 12642000 positive integers (up to 18990537) that are relatively prime to 18990537.
18990537 has 8 divisors, whose sum is 25357440
The reverse of 18990537 is 73509981
Previous prime number is 751
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million nine hundred ninety thousand five hundred thirty-seven
Scientific notation
1.8990537 × 10^7
Engineering notation
1.8990537 × 10^6
Prime Factorization
3 × 751 × 8429
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18990537
Product of the distinct prime numbers
The prime factorization of 18990537 is 3 × 751 × 8429.
Since it has a total of 3 prime factors.
4 , 2 , 28 , 99 , 724 , 209 , 9480 , 8217 , 22322 , 89126 , 557670 , 842620 , 1795365 , 266464 , 36423150 , 42932851 , 899698787 , 3668061 , 6508387090 , 2743121735
n×2
37981074
n×3
56971611
n×4
75962148
n×5
94952685
n÷2
9495268.5
n÷3
6330179
n÷3
4747634.25
n÷5
3798107.4
n2
360640495548369
n3
6.8487566744096E+21
n4
1.3006156702937E+29
n5
2.4699390009493E+36
2 √n
4357.8133278056
3 √n
266.79585736678
4 √n
66.013735902504
5 √n
28.556662519614
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
-18990536
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 18990537 can be divided by 8 positive divisors.
The sum of these divisors (counting 18990537) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100010111001001
3
Ternary
1022201211010020
4
Quaternary
1020130113021
5
Quinary
14330144122
6
Senary
1515011053
8
Octal
110342711
10
Decimal
18990537
12
Duodecimal
6439a89
16
Hexadecimal
121c5c9
20
Vigesimal
5idg6h
36
Base36
bb16x
md5
740f1c7b12853074e749f2d76defc4b0
sha1
2dc0ca1402ac54cbfdf41a763b7aac778eadeec7
sha256
b9259d8cb9c6a3755a8e8546ebb565d849094418da53b768e2cdd3a6eed5a08d
sha512
1302cb7022b8d10abba55cc1a2f7fddc5e0fb77013edb91066712dd39af3f897ee03833a92fa5f9d45239e8d9bd57001f5de164daa4cba837868d9d165f0f036
ripemd-160
a5744e23faf419b98ba92e92b606e6a3e4e6bf47
Diameter
37981074
Circumference
119321063.05385
Area
1.1329855314017E+15
Volume
2.8688004872733E+22
Surface area
4.531942125607E+15
Circumference
119321063.05385
Perimeter
75962148
Area
360640495548369
Diagonal
26856674.982148
Surface area
2163842973290214
Volume
6.8487566744096E+21
Space diagonal
32892574.947017
Perimeter
56971611
Area
1.5616191538915E+14
Altitude
16446287.473508
Surface area
1.5616191538915E+14
Volume
8.0713371452861E+20
Height
8952224.9940494