18449989 is an odd 8-digits composite number following 18449988
and preceding 18449990 . In scientific notation, it is written as 1.8449989 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 17843280 positive integers (up to 18449989) that are relatively prime to 18449989.
18449989 has 8 divisors, whose sum is 19066752
The reverse of 18449989 is 98994481
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighteen million four hundred forty-nine thousand nine hundred eighty-nine
Scientific notation
1.8449989 × 10^7
Engineering notation
1.8449989 × 10^6
Prime Factorization
71 × 53 × 4903
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18449989
Product of the distinct prime numbers
The prime factorization of 18449989 is 71 × 53 × 4903.
Since it has a total of 3 prime factors.
10 , 9 , 39 , 64 , 897 , 10 , 9396 , 5726 , 3382 , 80644 , 939399 , 505691 , 8070423 , 420284 , 61913306 , 38034117 , 986314031 , 235067573 , 1007175231 , 547094132
n×2
36899978
n×3
55349967
n×4
73799956
n×5
92249945
n÷2
9224994.5
n÷3
6149996.3333333
n÷3
4612497.25
n÷5
3689997.8
n2
340402094100121
n3
6.2804148917242E+21
n4
1.1587358566775E+29
n5
2.1378663809605E+36
2 √n
4295.3450385272
3 √n
264.24008711088
4 √n
65.538881883407
5 √n
28.392211552554
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
-18449988
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 18449989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18449989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110011000011001000101
3
Ternary
1021201100121221
4
Quaternary
1012120121011
5
Quinary
14210344424
6
Senary
1455240341
8
Octal
106303105
10
Decimal
18449989
12
Duodecimal
62190b1
16
Hexadecimal
1198645
20
Vigesimal
5f64j9
36
Base36
azg3p
md5
54e3bec554b1b963128bf6a0f62e4c23
sha1
d3fd2f151621699a64f14cf65d995ca4c0d54d75
sha256
e3ebe25ad1de8dc5a0d4c7cb690b7cd4be4c34af2bf800202ea0e85deb30cd60
sha512
53908f46b1a0198669f6c69e5b8141f0773093e71a8a5dfc131191c11f7f74697dd1c563b7bc999fb9f67f22138914de38f498bb6522b796eba1ed22f866ce3a
ripemd-160
76f1b7120835c57f4225fd541eee51907c8ed03b
Diameter
36899978
Circumference
115924699.80242
Area
1.0694047180915E+15
Volume
2.6307340380449E+22
Surface area
4.2776188723661E+15
Circumference
115924699.80242
Perimeter
73799956
Area
340402094100121
Diagonal
26092224.669434
Surface area
2042412564600726
Volume
6.2804148917242E+21
Space diagonal
31956318.347087
Perimeter
55349967
Area
1.4739843049606E+14
Altitude
15978159.173543
Surface area
1.4739843049606E+14
Volume
7.4015399310053E+20
Height
8697408.2231448