218985890 is an even 9-digits composite number following 218985889
and preceding 218985891 . In scientific notation, it is written as 2.18985890 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 87533424 positive integers (up to 218985890) that are relatively prime to 218985890.
218985890 has 16 divisors, whose sum is 394448832
The reverse of 218985890 is 098589812
Previous prime number is 1607
Is Prime? no
Number parity even
Number length 9
Sum of Digits 50
Digital Root 5
Name
two hundred eighteen million nine hundred eighty-five thousand eight hundred ninety
Scientific notation
2.18985890 × 10^8
Engineering notation
2.18985890 × 10^6
Prime Factorization
2 × 5 × 1607 × 13627
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
218985890
Product of the distinct prime numbers
The prime factorization of 218985890 is 2 × 5 × 1607 × 13627.
Since it has a total of 4 prime factors.
8 , 4 , 97 , 14 , 303 , 213 , 9946 , 8594 , 85505 , 71492 , 446904 , 243997 , 7809271 , 8547598 , 96621268 , 69772576 , 749030361 , 735087997 , 8203662950 , 328305621
n×2
437971780
n×3
656957670
n×4
875943560
n×5
1094929450
n÷2
109492945
n÷3
72995296.666667
n÷3
54746472.5
n÷5
43797178
n2
47954820019092100
n3
1.0501428941671E+25
n4
2.2996647630635E+33
n5
5.035941348411E+41
2 √n
14798.171846549
3 √n
602.75207050959
4 √n
121.64773670952
5 √n
46.567532521415
1 , 2 , 5 , 10 , 1607 , 3214 , 8035 , 13627 , 16070 , 27254 , 68135 , 136270 , 21898589 , 43797178 , 109492945 , 218985890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-218985889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 218985890 can be divided by 16 positive divisors.
The sum of these divisors (counting 218985890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101000011010111010110100010
3
Ternary
120021001122011112
4
Quaternary
31003113112202
5
Quinary
422030022030
6
Senary
33421343322
8
Octal
1503272642
10
Decimal
218985890
12
Duodecimal
61407b42
16
Hexadecimal
d0d75a2
20
Vigesimal
388d4ea
36
Base36
3mdmle
md5
4c25d8aa59d9c608233808a217f8c0bb
sha1
4f641dfe615daf936acfa4ab402b6b4cb6cf89a5
sha256
ac51a5808563c8a21a44097822c5eb1d8c91d7102f404a2f166eeb26f707354d
sha512
7fe6e7d6ece4dd1c31ac13ee24665a602ea10c38fa26f6e18e2548ed6d789b4701f8735fc87a15d2e69d9c9b270da270b8a6a5195cbbb196fb236a904f930aa5
ripemd-160
ad8a608057206dbf7177a91f32400f4bdb657ec5
Diameter
437971780
Circumference
1375928926.5276
Area
1.506545102762E+17
Volume
4.3988282687131E+25
Surface area
6.026180411048E+17
Circumference
1375928926.5276
Perimeter
875943560
Area
47954820019092100
Diagonal
309692815.60634
Surface area
287728920114552600
Volume
1.0501428941671E+25
Space diagonal
379294687.62069
Perimeter
656957670
Area
2.0765046185222E+16
Altitude
189647343.81034
Surface area
2.0765046185222E+16
Volume
1.2376052694673E+24
Height
103230938.53545