18746989 is an odd 8-digits prime number following 18746988
and preceding 18746990 . In scientific notation, it is written as 1.8746989 × 10^7.
The sum of its digits is 52. It has a total of 1 prime factors and 2 positive divisors.
There are 18746988 positive integers (up to 18746989) that are relatively prime to 18746989.
18746989 has 2 divisors, whose sum is 18746990
The reverse of 18746989 is 98964781
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighteen million seven hundred forty-six thousand nine hundred eighty-nine
Scientific notation
1.8746989 × 10^7
Engineering notation
1.8746989 × 10^6
Prime Factorization
18746989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18746989
Product of the distinct prime numbers
The prime factorization of 18746989 is 18746989.
Since it has a total of 1 prime factors.
6 , 4 , 76 , 71 , 553 , 951 , 8785 , 8230 , 77335 , 42664 , 538990 , 111760 , 3915302 , 5566388 , 66485639 , 80655570 , 434186761 , 189272694 , 3740780072 , 5899964390
n×2
37493978
n×3
56240967
n×4
74987956
n×5
93734945
n÷2
9373494.5
n÷3
6248996.3333333
n÷3
4686747.25
n÷5
3749397.8
n2
351449596566121
n3
6.5886217208795E+21
n4
1.2351681892649E+29
n5
2.3155684457299E+36
2 √n
4329.7793246308
3 √n
265.65042080125
4 √n
65.801058689285
5 √n
28.483037714048
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18746990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9373495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4329.7794401101
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998933162
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18746989 can be divided by 2 positive divisors.
The sum of these divisors (counting 18746989) is 18746990, the average is 9373495.
Base
System
Value
2
Binary
1000111100000111001101101
3
Ternary
1022021110000221
4
Quaternary
1013200321231
5
Quinary
14244400424
6
Senary
1505451341
8
Octal
107407155
10
Decimal
18746989
12
Duodecimal
6340b51
16
Hexadecimal
11e0e6d
20
Vigesimal
5h3799
36
Base36
b5t9p
md5
3f990d796773c750345f104933761061
sha1
5dcc0a409c53d0d900e2f2e89b46d2221b441edf
sha256
a04dbe67526d90e510da5505152d44d91de5ef79a0613389d229a1ccf0d0edfd
sha512
088ce9d2a877cde149e8ea1bcca0afd72af9a57f7713b5c3e3e384662b2eca5f22bd07f4ec976d15fa8c68a80a8e650df19502c4c58eeec48c31c429c760aa71
ripemd-160
0707332f858716d192b6c4453dae08432a6dbfe1
Diameter
37493978
Circumference
117790805.83866
Area
1.1041114706792E+15
Volume
2.7598354127463E+22
Surface area
4.4164458827169E+15
Circumference
117790805.83866
Perimeter
74987956
Area
351449596566121
Diagonal
26512246.097459
Surface area
2108697579396726
Volume
6.5886217208795E+21
Space diagonal
32470737.436935
Perimeter
56240967
Area
1.5218213938803E+14
Altitude
16235368.718467
Surface area
1.5218213938803E+14
Volume
7.7647651625115E+20
Height
8837415.3658197