18842989 is an odd 8-digits composite number following 18842988
and preceding 18842990 . In scientific notation, it is written as 1.8842989 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 17066640 positive integers (up to 18842989) that are relatively prime to 18842989.
18842989 has 8 divisors, whose sum is 20632032
The reverse of 18842989 is 98924881
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million eight hundred forty-two thousand nine hundred eighty-nine
Scientific notation
1.8842989 × 10^7
Engineering notation
1.8842989 × 10^6
Prime Factorization
11 × 283 × 6053
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18842989
Product of the distinct prime numbers
The prime factorization of 18842989 is 11 × 283 × 6053.
Since it has a total of 3 prime factors.
7 , 3 , 71 , 39 , 654 , 381 , 2077 , 3366 , 5486 , 60222 , 545869 , 940692 , 484099 , 6550570 , 93211083 , 54943788 , 771000127 , 277833351 , 5263161293 , 4645156869
n×2
37685978
n×3
56528967
n×4
75371956
n×5
94214945
n÷2
9421494.5
n÷3
6280996.3333333
n÷3
4710747.25
n÷5
3768597.8
n2
355058234454121
n3
6.6903584061784E+21
n4
1.2606634985368E+29
n5
2.375466843563E+36
2 √n
4340.8511838118
3 √n
266.10309852036
4 √n
65.885136288937
5 √n
28.512149459676
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
-18842988
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 18842989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18842989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000111111000010101101101
3
Ternary
1022110022201111
4
Quaternary
1013320111231
5
Quinary
14310433424
6
Senary
1511512021
8
Octal
107702555
10
Decimal
18842989
12
Duodecimal
6388611
16
Hexadecimal
11f856d
20
Vigesimal
5hf799
36
Base36
b7vcd
md5
789bafedca86a165e5c738de0820a1d5
sha1
925a8ddab7b7f6b668bcec2f466b415fb41e6aff
sha256
9806a1c9e76df9e16b54b3bad3ab8fd16e179e9bd18db4f07a855ba207095a80
sha512
d5a81f7a41cb3f12ffa77a61348ab6701999999abd4ead2a4b6fd00ec214bec89fe9806162e9bb0182654e5fcbe28b44e47f306bd5148b8965d06b79241eea83
ripemd-160
a372b539a99039124130269224e55915762c946b
Diameter
37685978
Circumference
118393991.62815
Area
1.1154483409576E+15
Volume
2.802450775831E+22
Surface area
4.4617933638305E+15
Circumference
118393991.62815
Perimeter
75371956
Area
355058234454121
Diagonal
26648010.599447
Surface area
2130349406724726
Volume
6.6903584061784E+21
Space diagonal
32637014.314461
Perimeter
56528967
Area
1.5374472543006E+14
Altitude
16318507.157231
Surface area
1.5374472543006E+14
Volume
7.884662995962E+20
Height
8882670.1998157