18985992 is an even 8-digits composite number following 18985991
and preceding 18985993 . In scientific notation, it is written as 1.8985992 × 10^7.
The sum of its digits is 51. It has a total of 6 prime factors and 32 positive divisors.
There are 6277824 positive integers (up to 18985992) that are relatively prime to 18985992.
18985992 has 32 divisors, whose sum is 47846400
The reverse of 18985992 is 29958981
Previous prime number is 127
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighteen million nine hundred eighty-five thousand nine hundred ninety-two
Scientific notation
1.8985992 × 10^7
Engineering notation
1.8985992 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 127 × 6229
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
4746498
Product of the distinct prime numbers
The prime factorization of 18985992 is 2 × 2 × 2 × 3 × 127 × 6229.
Since it has a total of 6 prime factors.
1 , 4 , 60 , 67 , 121 , 942 , 9195 , 6843 , 76562 , 80869 , 18805 , 541511 , 8696117 , 3949100 , 10623147 , 57606944 , 100647215 , 172499323 , 1648127286 , 7344876779
n×2
37971984
n×3
56957976
n×4
75943968
n×5
94929960
n÷2
9492996
n÷3
6328664
n÷3
4746498
n÷5
3797198.4
n2
360467892224064
n3
6.8438405180229E+21
n4
1.2993710132446E+29
n5
2.4669847662494E+36
2 √n
4357.2918194677
3 √n
266.77457160885
4 √n
66.009785785652
5 √n
28.555295497102
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 127 , 254 , 381 , 508 , 762 , 1016 , 1524 , 3048 , 6229 , 12458 , 18687 , 24916 , 37374 , 49832 , 74748 , 149496 , 791083 , 1582166 , 2373249 , 3164332 , 4746498 , 6328664 , 9492996 , 18985992
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18985991
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18985992 can be divided by 32 positive divisors.
The sum of these divisors (counting 18985992) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001000011011010000001000
3
Ternary
1022201120212220
4
Quaternary
1020123100020
5
Quinary
14330022432
6
Senary
1514534040
8
Octal
110332010
10
Decimal
18985992
12
Duodecimal
6437320
16
Hexadecimal
121b408
20
Vigesimal
5id4jc
36
Base36
baxoo
md5
6423648b5ce7f52b37da1008898829c1
sha1
fa51fa4a79b19faba0b08646598e20490280f89c
sha256
3452e690cbf728e4edbc4da553c2cb865e23d4881fabe6c620f63a84895b91c3
sha512
b1a0f9e5fd9df1fc34998c2fe60f4cc2c1237e7701901855806ff40171eee1f2d0862cd76b8b40d561c7eeeb0a47eaa7a80334e64ff453b5bdc7109bddc8eb7a
ripemd-160
90e001ff40ce9c3523e93c543388b9ed1ef2bdc9
Diameter
37971984
Circumference
119292505.97663
Area
1.1324432820661E+15
Volume
2.8667412125015E+22
Surface area
4.5297731282645E+15
Circumference
119292505.97663
Perimeter
75943968
Area
360467892224064
Diagonal
26850247.381507
Surface area
2162807353344384
Volume
6.8438405180229E+21
Space diagonal
32884702.776096
Perimeter
56957976
Area
1.5608717595734E+14
Altitude
16442351.388048
Surface area
1.5608717595734E+14
Volume
8.0655433994221E+20
Height
8950082.4605024