1990495831 is an odd 10-digits composite number following 1990495830
and preceding 1990495832 . In scientific notation, it is written as 1.990495831 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 1875533880 positive integers (up to 1990495831) that are relatively prime to 1990495831.
1990495831 has 8 divisors, whose sum is 2108041344
The reverse of 1990495831 is 1385940991
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion nine hundred ninety million four hundred ninety-five thousand eight hundred thirty-one
Scientific notation
1.990495831 × 10^9
Engineering notation
1.990495831 × 10^9
Prime Factorization
67 × 23 × 1291691
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990495831
Product of the distinct prime numbers
The prime factorization of 1990495831 is 67 × 23 × 1291691.
Since it has a total of 3 prime factors.
8 , 10 , 49 , 40 , 595 , 996 , 1509 , 4419 , 840 , 36942 , 566907 , 551903 , 7756687 , 8587271 , 41294244 , 57643581 , 20870926 , 727672977 , 3706183644 , 3759362526
n×2
3980991662
n×3
5971487493
n×4
7961983324
n×5
9952479155
n÷2
995247915.5
n÷3
663498610.33333
n÷3
497623957.75
n÷5
398099166.2
n2
3962073653228380561
n3
7.886491088866E+27
n4
1.5698027633606E+37
n5
3.1246858559617E+46
2 √n
44614.97317045
3 √n
1257.9221297666
4 √n
211.22256785308
5 √n
72.408950771498
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
-1990495830
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 1990495831 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990495831) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101001001000111001010111
3
Ternary
12010201110122221211
4
Quaternary
1312221020321113
5
Quinary
13034031331311
6
Senary
525303122251
8
Octal
16651107127
10
Decimal
1990495831
12
Duodecimal
476743387
16
Hexadecimal
76a48e57
20
Vigesimal
1b20bjbb
36
Base36
wx38ev
md5
90147ac9275ba14e0fc0e57678a482fd
sha1
5dd2d0aed903c2834f4b7930b1ea5e28eba489c1
sha256
0156b2fcceb19aaa3aa53d304040c828feb4d87a6dd5389fb45308768f1b7ae9
sha512
7f997291484ec69600e1da0ea63cd69844418269adefdbc3f1ac3d0fc83dfe402584b4583cc70535e03af40c90c6bf1111f67c6ba73431f265f1c5205cfcafae
ripemd-160
16ac65a737ada2599fd9a030694ae7a179a93b90
Diameter
3980991662
Circumference
12506654159.341
Area
1.2447221481964E+19
Volume
3.3034856623177E+28
Surface area
4.9788885927856E+19
Circumference
12506654159.341
Perimeter
7961983324
Area
3962073653228380561
Diagonal
2814986200.0473
Surface area
2.377244191937E+19
Volume
7.886491088866E+27
Space diagonal
3447639911.546
Perimeter
5971487493
Area
1.7156282176804E+18
Altitude
1723819955.773
Surface area
1.7156282176804E+18
Volume
9.2943188811741E+26
Height
938328733.3491