18994218 is an even 8-digits composite number following 18994217
and preceding 18994219 . In scientific notation, it is written as 1.8994218 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 6102768 positive integers (up to 18994218) that are relatively prime to 18994218.
18994218 has 32 divisors, whose sum is 39384576
The reverse of 18994218 is 81249981
Previous prime number is 83
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million nine hundred ninety-four thousand two hundred eighteen
Scientific notation
1.8994218 × 10^7
Engineering notation
1.8994218 × 10^6
Prime Factorization
2 × 3 × 43 × 83 × 887
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18994218
Product of the distinct prime numbers
The prime factorization of 18994218 is 2 × 3 × 43 × 83 × 887.
Since it has a total of 5 prime factors.
7 , 5 , 58 , 46 , 852 , 964 , 4849 , 4602 , 18889 , 84440 , 593018 , 782630 , 8261708 , 6094174 , 86104478 , 43265256 , 220465580 , 892263225 , 4819860741 , 7714930305
n×2
37988436
n×3
56982654
n×4
75976872
n×5
94971090
n÷2
9497109
n÷3
6331406
n÷3
4748554.5
n÷5
3798843.6
n2
360780317431524
n3
6.8527399994036E+21
n4
1.3016243744599E+29
n5
2.4723337122605E+36
2 √n
4358.2356521877
3 √n
266.81309423419
4 √n
66.01693458642
5 √n
28.557769480682
1 , 2 , 3 , 6 , 43 , 83 , 86 , 129 , 166 , 249 , 258 , 498 , 887 , 1774 , 2661 , 3569 , 5322 , 7138 , 10707 , 21414 , 38141 , 73621 , 76282 , 114423 , 147242 , 220863 , 228846 , 441726 , 3165703 , 6331406 , 9497109 , 18994218
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18994217
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18994218 can be divided by 32 positive divisors.
The sum of these divisors (counting 18994218) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001000011101010000101010
3
Ternary
1022202000011120
4
Quaternary
1020131100222
5
Quinary
14330303333
6
Senary
1515040110
8
Octal
110352052
10
Decimal
18994218
12
Duodecimal
6440036
16
Hexadecimal
121d42a
20
Vigesimal
5ie5ai
36
Base36
bb416
md5
40d279ad72b330c558d32d5789ea8407
sha1
1797afe400cae23a6c372443fc3cd1e441af6aed
sha256
a58681cca8af2c629bc97a00381180d9dd2c920431918fdcae7d6356f0332a48
sha512
666f16c554e23d3282aff581448f9cd4dd2eeabb40cc86c8df24caafce30f37fb64359409116fe8265c43e5441fd4c5479fa31e028c2420f5492182f48400fec
ripemd-160
770dc4ded6071b38aabcfbe006d7b9a95b60454c
Diameter
37988436
Circumference
119344191.45897
Area
1.1334247948027E+15
Volume
2.870469018545E+22
Surface area
4.5336991792107E+15
Circumference
119344191.45897
Perimeter
75976872
Area
360780317431524
Diagonal
26861880.702271
Surface area
2164681904589144
Volume
6.8527399994036E+21
Space diagonal
32898950.626039
Perimeter
56982654
Area
1.5622246004056E+14
Altitude
16449475.31302
Surface area
1.5622246004056E+14
Volume
8.0760315388109E+20
Height
8953960.2340904