18888949 is an odd 8-digits prime number following 18888948
and preceding 18888950 . In scientific notation, it is written as 1.8888949 × 10^7.
The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors.
There are 18888948 positive integers (up to 18888949) that are relatively prime to 18888949.
18888949 has 2 divisors, whose sum is 18888950
The reverse of 18888949 is 94988881
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 55 Digital Root 1
Name
eighteen million eight hundred eighty-eight thousand nine hundred forty-nine
Scientific notation
1.8888949 × 10^7
Engineering notation
1.8888949 × 10^6
Prime Factorization
18888949
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
18888949 Product of the distinct prime numbers
The prime factorization of 18888949 is 18888949.
Since it has a total of 1 prime factors.
10 , 8 , 37 , 17 , 693 , 288 , 8504 , 5086 , 71858 , 66010 , 396061 , 433577 , 3831682 , 1443079 , 90601026 , 60089767 , 660074382 , 716452245 , 4760238267 , 6234147464
n×2
37777898
n×3
56666847
n×4
75555796
n×5
94444745
n÷2
9444474.5
n÷3
6296316.3333333
n÷3
4722237.25
n÷5
3777789.8
n2
356792394324601
n3
6.7394333399853E+21
n4
1.2730081264788E+29
n5
2.4045785577644E+36
2 √n4346.1418522639
3 √n266.31927385518
4 √n65.925274760625
5 √n28.526044726065
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
18888950 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
9444475 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4346.1419673085 Returns the nth root of the product of n divisors
H Harmonic Mean
1.999999894118 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18888949 can be divided by 2 positive divisors.
The sum of these divisors (counting 18888949) is 18888950, the average is 9444475.
Base
System
Value
2
Binary
1001000000011100011110101
3
Ternary
1022112122202201
4
Quaternary
1020003203311
5
Quinary
14313421244
6
Senary
1512504501
8
Octal
110034365
10
Decimal
18888949
12
Duodecimal
63ab131
16
Hexadecimal
12038f5
20
Vigesimal
5i1279
36
Base36
b8ut1
md5
f514da878a69161f6f9a141dfc2ccac2
sha1
4fb84051827687059e9e837d1e9077c98d1f7b24
sha256
c3861942d5430758d1ea353f8ce93b1e9a8cfbd768be6a0401f41d5114f68365
sha512
fee82bc541ef08ff8bb98354f62965a7e6bcb83ac48b54f66d1e71addc8a0d4e43c0ad961f376bff43cd444e757882ebf2ef29c32b89a6eaae180225ef2572a9
ripemd-160
7c065ca26cf2bc7d012d3d10c409b438f638971a
Diameter
37777898
Circumference
118682766.82486
Area
1.1208963648669E+15
Volume
2.8230072360341E+22
Surface area
4.4835854594675E+15
Circumference
118682766.82486
Perimeter
75555796
Area
356792394324601
Diagonal
26713007.854774
Surface area
2140754365947606
Volume
6.7394333399853E+21
Space diagonal
32716619.369577
Perimeter
56666847
Area
1.5449563868109E+14
Altitude
16358309.684789
Surface area
1.5449563868109E+14
Volume
7.9424983600972E+20
Height
8904335.9515912