1990243808 is an even 10-digits composite number following 1990243807
and preceding 1990243809 . In scientific notation, it is written as 1.990243808 × 10^9.
The sum of its digits is 44. It has a total of 7 prime factors and 24 positive divisors.
There are 852961536 positive integers (up to 1990243808) that are relatively prime to 1990243808.
1990243808 has 24 divisors, whose sum is 4478049072
The reverse of 1990243808 is 8083420991
Previous prime number is 7
Is Prime? no
Number parity even
Number length 10
Sum of Digits 44
Digital Root 8
Name
one billion nine hundred ninety million two hundred forty-three thousand eight hundred eight
Scientific notation
1.990243808 × 10^9
Engineering notation
1.990243808 × 10^9
Prime Factorization
2 × 2 × 2 × 2 × 2 × 7 × 8885017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
124390238
Product of the distinct prime numbers
The prime factorization of 1990243808 is 2 × 2 × 2 × 2 × 2 × 7 × 8885017.
Since it has a total of 7 prime factors.
10 , 4 , 97 , 93 , 580 , 968 , 6473 , 7153 , 78551 , 14258 , 379029 , 863216 , 2695673 , 9851583 , 25879236 , 55860635 , 272880039 , 170259965 , 8071815307 , 4464318715
n×2
3980487616
n×3
5970731424
n×4
7960975232
n×5
9951219040
n÷2
995121904
n÷3
663414602.66667
n÷3
497560952
n÷5
398048761.6
n2
3961070415282340864
n3
7.8834958670677E+27
n4
1.5690078834825E+37
n5
3.1227082248042E+46
2 √n
44612.148659306
3 √n
1257.8690376869
4 √n
211.21588164555
5 √n
72.407117093176
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 32 , 56 , 112 , 224 , 8885017 , 17770034 , 35540068 , 62195119 , 71080136 , 124390238 , 142160272 , 248780476 , 284320544 , 497560952 , 995121904 , 1990243808
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990243807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990243808 can be divided by 24 positive divisors.
The sum of these divisors (counting 1990243808) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1110110101000001011010111100000
3
Ternary
12010200222212020122
4
Quaternary
1312220023113200
5
Quinary
13034000300213
6
Senary
525253455412
8
Octal
16650132740
10
Decimal
1990243808
12
Duodecimal
476641568
16
Hexadecimal
76a0b5e0
20
Vigesimal
1b1j09a8
36
Base36
wwxty8
md5
acbe7ba79e4413392e362514564cd029
sha1
5e0e3d03339aa9d35a904133d00078ceb3b3fa63
sha256
5096773659be6ea450301407855ba6e78b678f56c2a6d8c672090aedea4a5dc1
sha512
f2d5ab8d4ff9c9bd0aba4ebeb59c92f7659a02bc4203566e4c9be43079f1f9ed912f1a6cb02d8f8cd376bea1cbed581905c07c04da59631d2bff34c5332d6fe8
ripemd-160
f5b9f50e9efa70793965289011906d3530d54d0f
Diameter
3980487616
Circumference
12505070652.131
Area
1.2444069717003E+19
Volume
3.3022310267447E+28
Surface area
4.9776278868011E+19
Circumference
12505070652.131
Perimeter
7960975232
Area
3961070415282340864
Diagonal
2814629785.7027
Surface area
2.3766422491694E+19
Volume
7.8834958670677E+27
Space diagonal
3447203394.9054
Perimeter
5970731424
Area
1.7151938029067E+18
Altitude
1723601697.4527
Surface area
1.7151938029067E+18
Volume
9.2907889784328E+26
Height
938209928.56756