20218749 is an odd 8-digits composite number following 20218748
and preceding 20218750 . In scientific notation, it is written as 2.0218749 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13389600 positive integers (up to 20218749) that are relatively prime to 20218749.
20218749 has 8 divisors, whose sum is 27137472
The reverse of 20218749 is 94781202
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million two hundred eighteen thousand seven hundred forty-nine
Scientific notation
2.0218749 × 10^7
Engineering notation
2.0218749 × 10^6
Prime Factorization
3 × 151 × 44633
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20218749
Product of the distinct prime numbers
The prime factorization of 20218749 is 3 × 151 × 44633.
Since it has a total of 3 prime factors.
5 , 1 , 18 , 51 , 869 , 384 , 5835 , 558 , 93523 , 3321 , 296237 , 894590 , 4161716 , 8189538 , 30886914 , 53209943 , 906860023 , 386623974 , 7385930289 , 5903852271
n×2
40437498
n×3
60656247
n×4
80874996
n×5
101093745
n÷2
10109374.5
n÷3
6739583
n÷3
5054687.25
n÷5
4043749.8
n2
408797811125001
n3
8.2653803348858E+21
n4
1.6711565038059E+29
n5
3.3788693890169E+36
2 √n
4496.5263259543
3 √n
272.42780232485
4 √n
67.056143088865
5 √n
28.916841609629
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
-20218748
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 20218749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20218749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000001101111101
3
Ternary
1102001012220120
4
Quaternary
1031020031331
5
Quinary
20133444444
6
Senary
2001205153
8
Octal
115101575
10
Decimal
20218749
12
Duodecimal
69307b9
16
Hexadecimal
134837d
20
Vigesimal
6676h9
36
Base36
c1cvx
md5
dfd4b37765dd59c2969ce0a058ce7777
sha1
d92f840a9e46c15cc96d3a923321e08d35a79bc8
sha256
4068c0369d818a961977b332be614a981a8457fb4bc5188cc337a98b0c921905
sha512
7c1b5f6c5d0b3d6a0ce28bc60d697548bee03ad11f43cf8589a3c5ca1d8dc6e3e25c534d7c031f3b215c82d03f42bd582dbc7e481917dba4559797ee954a510d
ripemd-160
ac299f7beb57ef8eeeb5717dfedf17483fecbc85
Diameter
40437498
Circumference
127038146.64635
Area
1.2842762002339E+15
Volume
3.4621944185604E+22
Surface area
5.1371048009356E+15
Circumference
127038146.64635
Perimeter
80874996
Area
408797811125001
Diagonal
28593629.050017
Surface area
2452786866750006
Volume
8.2653803348858E+21
Space diagonal
35019900.533482
Perimeter
60656247
Area
1.7701464472286E+14
Altitude
17509950.266741
Surface area
1.7701464472286E+14
Volume
9.7408441398061E+20
Height
9531209.6833392