18994789 is an odd 8-digits composite number following 18994788
and preceding 18994790 . In scientific notation, it is written as 1.8994789 × 10^7.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 17228640 positive integers (up to 18994789) that are relatively prime to 18994789.
18994789 has 8 divisors, whose sum is 20768832
The reverse of 18994789 is 98749981
Previous prime number is 503
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
eighteen million nine hundred ninety-four thousand seven hundred eighty-nine
Scientific notation
1.8994789 × 10^7
Engineering notation
1.8994789 × 10^6
Prime Factorization
11 × 503 × 3433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18994789
Product of the distinct prime numbers
The prime factorization of 18994789 is 11 × 503 × 3433.
Since it has a total of 3 prime factors.
3 , 8 , 75 , 7 , 352 , 152 , 7340 , 7694 , 39953 , 93028 , 551531 , 481652 , 1434606 , 2071081 , 50655321 , 8600217 , 926289198 , 50858587 , 3564973663 , 8553132955
n×2
37989578
n×3
56984367
n×4
75979156
n×5
94973945
n÷2
9497394.5
n÷3
6331596.3333333
n÷3
4748697.25
n÷5
3798957.8
n2
360802009154521
n3
6.8533580346662E+21
n4
1.3017808980994E+29
n5
2.4727053483628E+36
2 √n
4358.3011598558
3 √n
266.8157678329
4 √n
66.017430727466
5 √n
28.557941178093
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
-18994788
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 18994789 can be divided by 8 positive divisors.
The sum of these divisors (counting 18994789) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011101011001100101
3
Ternary
1022202000221201
4
Quaternary
1020131121211
5
Quinary
14330313124
6
Senary
1515042501
8
Octal
110353145
10
Decimal
18994789
12
Duodecimal
6440431
16
Hexadecimal
121d665
20
Vigesimal
5ie6j9
36
Base36
bb4h1
md5
df62dd620f945a2ef5d2feea2a147de6
sha1
3cc8d3969d132150da97ec4b03adcace48c5c975
sha256
015f2370be3d655b700586d15b86ac624978ea285aa2fbcb6a9db20b0e1c2916
sha512
b2fd1bb54a351064533cc02ecef2068145361d025b91c6fd87683a680788b9771ef49312ca068ba6294703dbdff01f0199562d8e98ccdf6d0fa2aca41f49f9e4
ripemd-160
1e1238632da6c2d0843caa414cdae9b986202733
Diameter
37989578
Circumference
119347779.15778
Area
1.1334929413603E+15
Volume
2.8707279005504E+22
Surface area
4.5339717654411E+15
Circumference
119347779.15778
Perimeter
75979156
Area
360802009154521
Diagonal
26862688.218215
Surface area
2164812054927126
Volume
6.8533580346662E+21
Space diagonal
32899939.62705
Perimeter
56984367
Area
1.5623185283214E+14
Altitude
16449969.813525
Surface area
1.5623185283214E+14
Volume
8.076759900353E+20
Height
8954229.4060718