18989931 is an odd 8-digits composite number following 18989930
and preceding 18989932 . In scientific notation, it is written as 1.8989931 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 12588872 positive integers (up to 18989931) that are relatively prime to 18989931.
18989931 has 8 divisors, whose sum is 25462080
The reverse of 18989931 is 13998981
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighteen million nine hundred eighty-nine thousand nine hundred thirty-one
Scientific notation
1.8989931 × 10^7
Engineering notation
1.8989931 × 10^6
Prime Factorization
3 × 179 × 35363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18989931
Product of the distinct prime numbers
The prime factorization of 18989931 is 3 × 179 × 35363.
Since it has a total of 3 prime factors.
7 , 10 , 29 , 63 , 444 , 904 , 6438 , 5188 , 25718 , 66380 , 97667 , 61972 , 2835697 , 263382 , 74329832 , 6605752 , 980772439 , 861442029 , 8320740794 , 2490321095
n×2
37979862
n×3
56969793
n×4
75959724
n×5
94949655
n÷2
9494965.5
n÷3
6329977
n÷3
4747482.75
n÷5
3797986.2
n2
360617479384761
n3
6.8481010509105E+21
n4
1.3004496643782E+29
n5
2.4695449395515E+36
2 √n
4357.7437969665
3 √n
266.79301946196
4 √n
66.013209261227
5 √n
28.556480265069
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
-18989930
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 18989931 can be divided by 8 positive divisors.
The sum of these divisors (counting 18989931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100001101101011
3
Ternary
1022201210021210
4
Quaternary
1020130031223
5
Quinary
14330134211
6
Senary
1515004203
8
Octal
110341553
10
Decimal
18989931
12
Duodecimal
6439663
16
Hexadecimal
121c36b
20
Vigesimal
5idegb
36
Base36
bb0q3
md5
5628fc6bdb5b91aa833e2bacc98c038c
sha1
5a19f72ef0aa78e92dd05cbbc99a6e658c14b041
sha256
61e96a2a7fbf85315f7a47cc00bb23872fe1fafe695c3553c32cab2131f58c9d
sha512
e456aa46f6d741e8778109813dbee9d3600df11a430cd2d7b3925e1173046bec3ede42fb3bdbe20a33df5540d32f2efe7255c80a832528b323361f1a96166c23
ripemd-160
7ec4d99d364e1b30809592601da178ec85f84e0d
Diameter
37979862
Circumference
119317255.44355
Area
1.1329132239912E+15
Volume
2.8685258603441E+22
Surface area
4.5316528959649E+15
Circumference
119317255.44355
Perimeter
75959724
Area
360617479384761
Diagonal
26855817.968729
Surface area
2163704876308566
Volume
6.8481010509105E+21
Space diagonal
32891525.324227
Perimeter
56969793
Area
1.5615194909796E+14
Altitude
16445762.662114
Surface area
1.5615194909796E+14
Volume
8.0705644855826E+20
Height
8951939.3229098