18678081 is an odd 8-digits composite number following 18678080
and preceding 18678082 . In scientific notation, it is written as 1.8678081 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 12038400 positive integers (up to 18678081) that are relatively prime to 18678081.
18678081 has 16 divisors, whose sum is 25740288
The reverse of 18678081 is 18087681
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighteen million six hundred seventy-eight thousand eighty-one
Scientific notation
1.8678081 × 10^7
Engineering notation
1.8678081 × 10^6
Prime Factorization
3 × 37 × 191 × 881
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18678081
Product of the distinct prime numbers
The prime factorization of 18678081 is 3 × 37 × 191 × 881.
Since it has a total of 4 prime factors.
6 , 4 , 89 , 96 , 730 , 284 , 961 , 4948 , 49226 , 41426 , 38800 , 130632 , 8839607 , 5496998 , 24985975 , 33014000 , 368249560 , 952801175 , 4222696816 , 3211758332
n×2
37356162
n×3
56034243
n×4
74712324
n×5
93390405
n÷2
9339040.5
n÷3
6226027
n÷3
4669520.25
n÷5
3735616.2
n2
348870709842561
n3
6.5162353769669E+21
n4
1.2171077218605E+29
n5
2.2733236614636E+36
2 √n
4321.8145494688
3 √n
265.32453889664
4 √n
65.740509196908
5 √n
28.462067933113
1 , 3 , 37 , 111 , 191 , 573 , 881 , 2643 , 7067 , 21201 , 32597 , 97791 , 168271 , 504813 , 6226027 , 18678081
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
-18678080
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 18678081 can be divided by 16 positive divisors.
The sum of these divisors (counting 18678081) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000111010000000101000001
3
Ternary
1022010221111210
4
Quaternary
1013100011001
5
Quinary
14240144311
6
Senary
1504200333
8
Octal
107200501
10
Decimal
18678081
12
Duodecimal
63090a9
16
Hexadecimal
11d0141
20
Vigesimal
5gef41
36
Base36
b4c3l
md5
1cc3139dbfb2b99ea6bd15d67b6ad1c6
sha1
bacd1d596930c01584bd92b4cd197e5f14e8e828
sha256
0be0a5dda8c584f1b5d3d9aaf5bb3e4dc7a47e09d3b57aa406f2266a42276f02
sha512
5dcef0fdf4b2c901a8d78c5c9ca4009e198b0b46f8a695dcaf289cd598017e77e343a5f2cc424d18c42ec4c563ce46b70934ef7267c1470cfe619df971d79b3d
ripemd-160
90123f01f09de5ab0671dbe2513b7b849454cd7c
Diameter
37356162
Circumference
117357844.10551
Area
1.096009659094E+15
Volume
2.7295142919121E+22
Surface area
4.3840386363762E+15
Circumference
117357844.10551
Perimeter
74712324
Area
348870709842561
Diagonal
26414795.469303
Surface area
2093224259055366
Volume
6.5162353769669E+21
Space diagonal
32351385.279887
Perimeter
56034243
Area
1.5106544867998E+14
Altitude
16175692.639943
Surface area
1.5106544867998E+14
Volume
7.6794570381016E+20
Height
8804931.8231011