18849989 is an odd 8-digits composite number following 18849988
and preceding 18849990 . In scientific notation, it is written as 1.8849989 × 10^7.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 18839424 positive integers (up to 18849989) that are relatively prime to 18849989.
18849989 has 4 divisors, whose sum is 18860556
The reverse of 18849989 is 98994881
Previous prime number is 2273
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
eighteen million eight hundred forty-nine thousand nine hundred eighty-nine
Scientific notation
1.8849989 × 10^7
Engineering notation
1.8849989 × 10^6
Prime Factorization
2273 × 8293
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18849989
Product of the distinct prime numbers
The prime factorization of 18849989 is 2273 × 8293.
Since it has a total of 2 prime factors.
4 , 2 , 90 , 20 , 670 , 792 , 678 , 3116 , 21236 , 82879 , 647089 , 312504 , 6744558 , 1008645 , 90564154 , 93076046 , 370083049 , 161958698 , 4490102759 , 3589038632
n×2
37699978
n×3
56549967
n×4
75399956
n×5
94249945
n÷2
9424994.5
n÷3
6283329.6666667
n÷3
4712497.25
n÷5
3769997.8
n2
355322085300121
n3
6.6978173993643E+21
n4
1.2625378430203E+29
n5
2.3798824453016E+36
2 √n
4341.6574024213
3 √n
266.13604607229
4 √n
65.891254369767
5 √n
28.514267546092
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18849988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18849989 can be divided by 4 positive divisors.
The sum of these divisors (counting 18849989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111111010000011000101
3
Ternary
1022110200022202
4
Quaternary
1013322003011
5
Quinary
14311144424
6
Senary
1512004245
8
Octal
107720305
10
Decimal
18849989
12
Duodecimal
6390685
16
Hexadecimal
11fa0c5
20
Vigesimal
5hg4j9
36
Base36
b80qt
md5
ad0513bb14c177ce3421a6623d1d0329
sha1
81a2ce14affd05194823b82af85ee31cf1ce617c
sha256
82790cff161d6401f995c1160a149b46a9d6c48894776540c50a7e6ac03a9d00
sha512
0e9078fcc6f1f00dfae949ae7f7aaa0e699c612c97a1084be489e0f8cf05dddd1b56a19ede395289cda06f0ec6057b5f9863a51b9a615e28c57aecb29f35b9f5
ripemd-160
20784f54ca4f90c890352ec8a2eda3906e4ff5aa
Diameter
37699978
Circumference
118437973.9253
Area
1.1162772528371E+15
Volume
2.8055751915905E+22
Surface area
4.4651090113483E+15
Circumference
118437973.9253
Perimeter
75399956
Area
355322085300121
Diagonal
26657910.094384
Surface area
2131932511800726
Volume
6.6978173993643E+21
Space diagonal
32649138.670114
Perimeter
56549967
Area
1.5385897619778E+14
Altitude
16324569.335057
Surface area
1.5385897619778E+14
Volume
7.893453503733E+20
Height
8885970.0314612