18904920 is an even 8-digits composite number following 18904919
and preceding 18904921 . In scientific notation, it is written as 1.8904920 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 32 positive divisors.
There are 5013504 positive integers (up to 18904920) that are relatively prime to 18904920.
18904920 has 32 divisors, whose sum is 38018880
The reverse of 18904920 is 02940981
Previous prime number is 257
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million nine hundred four thousand nine hundred twenty
Scientific notation
1.8904920 × 10^7
Engineering notation
1.8904920 × 10^6
Prime Factorization
2 × 2 × 2 × 15 × 257 × 613
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
4726230
Product of the distinct prime numbers
The prime factorization of 18904920 is 2 × 2 × 2 × 15 × 257 × 613.
Since it has a total of 6 prime factors.
2 , 3 , 40 , 86 , 151 , 227 , 3034 , 2224 , 46762 , 5302 , 372963 , 852146 , 3908474 , 175803 , 88827768 , 81077885 , 789195857 , 707022491 , 6587687247 , 9998998989
n×2
37809840
n×3
56714760
n×4
75619680
n×5
94524600
n÷2
9452460
n÷3
6301640
n÷3
4726230
n÷5
3780984
n2
357396000206400
n3
6.756542792222E+21
n4
1.2773190096353E+29
n5
2.4147613691635E+36
2 √n
4347.9788407949
3 √n
266.39431220891
4 √n
65.939205642735
5 √n
28.53086696847
1 , 2 , 4 , 8 , 15 , 30 , 60 , 120 , 257 , 514 , 613 , 1028 , 1226 , 2056 , 2452 , 3855 , 4904 , 7710 , 9195 , 15420 , 18390 , 30840 , 36780 , 73560 , 157541 , 315082 , 630164 , 1260328 , 2363115 , 4726230 , 9452460 , 18904920
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
-18904919
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 18904920 can be divided by 32 positive divisors.
The sum of these divisors (counting 18904920) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001000000111011101011000
3
Ternary
1022120110200020
4
Quaternary
1020013131120
5
Quinary
14314424140
6
Senary
1513110440
8
Octal
110073530
10
Decimal
18904920
12
Duodecimal
63b8420
16
Hexadecimal
1207758
20
Vigesimal
5i3260
36
Base36
b974o
md5
33b41281ad613fcf1fd0d309e7485d50
sha1
6da980a30edc2bdd4df0299705cfcbf1214a6d0e
sha256
197fb1b9d998db6fbab08cb9da196629595e310666ec7e549735cf0e854e438a
sha512
c55287b3c07e79c7de52a65bf9e82d5c83aaa9bf7adca36088d80cfe5cbbfec19a1841a2be482d1516a2d6411bc6643056c62b2d1e02ff6f8c2dac7c543d3f30
ripemd-160
faad24bb07524a6d7a750950cf81504e1e06ee9e
Diameter
37809840
Circumference
118783115.57741
Area
1.1227926486708E+15
Volume
2.8301740266279E+22
Surface area
4.4911705946832E+15
Circumference
118783115.57741
Perimeter
75619680
Area
357396000206400
Diagonal
26735594.259578
Surface area
2144376001238400
Volume
6.756542792222E+21
Space diagonal
32744281.953025
Perimeter
56714760
Area
1.5475700769485E+14
Altitude
16372140.976513
Surface area
1.5475700769485E+14
Volume
7.9626620429287E+20
Height
8911864.7531928