18987051 is an odd 8-digits composite number following 18987050
and preceding 18987052 . In scientific notation, it is written as 1.8987051 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 12545792 positive integers (up to 18987051) that are relatively prime to 18987051.
18987051 has 8 divisors, whose sum is 25540560
The reverse of 18987051 is 15078981
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighteen million nine hundred eighty-seven thousand fifty-one
Scientific notation
1.8987051 × 10^7
Engineering notation
1.8987051 × 10^6
Prime Factorization
3 × 113 × 56009
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18987051
Product of the distinct prime numbers
The prime factorization of 18987051 is 3 × 113 × 56009.
Since it has a total of 3 prime factors.
3 , 3 , 51 , 17 , 343 , 606 , 9962 , 2324 , 5729 , 90608 , 872544 , 280104 , 76357 , 7086686 , 718311 , 2289950 , 160862574 , 164355790 , 3461433512 , 4650013623
n×2
37974102
n×3
56961153
n×4
75948204
n×5
94935255
n÷2
9493525.5
n÷3
6329017
n÷3
4746762.75
n÷5
3797410.2
n2
360508105676601
n3
6.844985788395E+21
n4
1.2996609425853E+29
n5
2.4676728599575E+36
2 √n
4357.4133382088
3 √n
266.77953156422
4 √n
66.010706239282
5 √n
28.55561404125
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
-18987050
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 18987051 can be divided by 8 positive divisors.
The sum of these divisors (counting 18987051) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011011100000101011
3
Ternary
1022201122100010
4
Quaternary
1020123200223
5
Quinary
14330041201
6
Senary
1514543003
8
Octal
110334053
10
Decimal
18987051
12
Duodecimal
6437a63
16
Hexadecimal
121b82b
20
Vigesimal
5id7cb
36
Base36
bayi3
md5
6cbeb0ec50b5868a9cc00b4dd52e5a27
sha1
5dbec9f6be324c62b10d7a0f3abb59902fcaa4a8
sha256
39aeeea65ba3074750c9b1a6db934addec712c9ae20144c803fbfaaea52286ff
sha512
f3509c3934658afaf5f41728637b09fa2dda6d1cf316e812f4a1ce8b563d8c54f23a110a2dfbee15bc57b8d273efe5a8793b8ce5d54d1c322a2449212cbfdade
ripemd-160
0f96781a2e8c07f6c604d3d7f5f49d1e54eb2067
Diameter
37974102
Circumference
119299159.86987
Area
1.1325696163532E+15
Volume
2.8672209422331E+22
Surface area
4.5302784654127E+15
Circumference
119299159.86987
Perimeter
75948204
Area
360508105676601
Diagonal
26851745.03367
Surface area
2163048634059606
Volume
6.844985788395E+21
Space diagonal
32886537.017901
Perimeter
56961153
Area
1.5610458889307E+14
Altitude
16443268.508951
Surface area
1.5610458889307E+14
Volume
8.0668931134994E+20
Height
8950581.6778899