18989849 is an odd 8-digits composite number following 18989848
and preceding 18989850 . In scientific notation, it is written as 1.8989849 × 10^7.
The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors.
There are 18570240 positive integers (up to 18989849) that are relatively prime to 18989849.
18989849 has 8 divisors, whose sum is 19413192
The reverse of 18989849 is 94898981
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
eighteen million nine hundred eighty-nine thousand eight hundred forty-nine
Scientific notation
1.8989849 × 10^7
Engineering notation
1.8989849 × 10^6
Prime Factorization
61 × 193 × 1613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18989849
Product of the distinct prime numbers
The prime factorization of 18989849 is 61 × 193 × 1613.
Since it has a total of 3 prime factors.
2 , 10 , 22 , 64 , 633 , 851 , 6438 , 1400 , 41332 , 67788 , 945417 , 949441 , 918803 , 3028429 , 20717172 , 66333363 , 76053466 , 507103735 , 6655049081 , 2608728575
n×2
37979698
n×3
56969547
n×4
75959396
n×5
94949245
n÷2
9494924.5
n÷3
6329949.6666667
n÷3
4747462.25
n÷5
3797969.8
n2
360614365042801
n3
6.8480123393937E+21
n4
1.3004272027522E+29
n5
2.4694916215757E+36
2 √n
4357.7343884179
3 √n
266.7926354504
4 √n
66.013137998567
5 √n
28.556455603205
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
-18989848
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 18989849 can be divided by 8 positive divisors.
The sum of these divisors (counting 18989849) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100001100011001
3
Ternary
1022201210011202
4
Quaternary
1020130030121
5
Quinary
14330133344
6
Senary
1515003545
8
Octal
110341431
10
Decimal
18989849
12
Duodecimal
64395b5
16
Hexadecimal
121c319
20
Vigesimal
5idec9
36
Base36
bb0nt
md5
446674e19f59cc7c9f7a72fec3951271
sha1
921a918169d9281b4b5df1793fa1be4c6305771d
sha256
eff6f79cf72880ef3ada5c6990ba3998aef22b6f3fa469b40573be6d5567c8c7
sha512
38aa9ffb6154a01332503d524176cca8d5b55960713497f128a801baff25134a5f96cb6d6355c2597266cead79873fdca97b8463dfd01bd0cccd354a1a029a7c
ripemd-160
5aae72206609f45036979b34d1c22cc0a93ec2e1
Diameter
37979698
Circumference
119316740.22236
Area
1.1329034399974E+15
Volume
2.8684887009509E+22
Surface area
4.5316137599896E+15
Circumference
119316740.22236
Perimeter
75959396
Area
360614365042801
Diagonal
26855702.003217
Surface area
2163686190256806
Volume
6.8480123393937E+21
Space diagonal
32891383.296061
Perimeter
56969547
Area
1.5615060054833E+14
Altitude
16445691.648031
Surface area
1.5615060054833E+14
Volume
8.0704599380574E+20
Height
8951900.6677391