1990809394 is an even 10-digits composite number following 1990809393
and preceding 1990809395 . In scientific notation, it is written as 1.990809394 × 10^9.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 853204020 positive integers (up to 1990809394) that are relatively prime to 1990809394.
1990809394 has 8 divisors, whose sum is 3412816128
The reverse of 1990809394 is 4939080991
Previous prime number is 7
Is Prime? no Number parity even Number length 10 Sum of Digits 52 Digital Root 7
Name
one billion nine hundred ninety million eight hundred nine thousand three hundred ninety-four
Scientific notation
1.990809394 × 10^9
Engineering notation
1.990809394 × 10^9
Prime Factorization
2 × 7 × 142200671
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1990809394 Product of the distinct prime numbers
The prime factorization of 1990809394 is 2 × 7 × 142200671.
Since it has a total of 3 prime factors.
7 , 5 , 73 , 10 , 361 , 422 , 877 , 5747 , 13704 , 21661 , 150172 , 284760 , 1736829 , 1872716 , 41395370 , 76377254 , 886445652 , 868892102 , 8127813688 , 9539860070
n×2
3981618788
n×3
5972428182
n×4
7963237576
n×5
9954046970
n÷2
995404697
n÷3
663603131.33333
n÷3
497702348.5
n÷5
398161878.8
n2
3963322043238647236
n3
7.8902187551268E+27
n4
1.5707921618421E+37
n5
3.1271477918169E+46
2 √n44618.487132578
3 √n1257.9881798298
4 √n211.23088583959
5 √n72.411231945559
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
-1990809393 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 1990809394 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990809394) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101010010101011100110010
3
Ternary
12010202001121002021
4
Quaternary
1312222111130302
5
Quinary
13034121400034
6
Senary
525313542054
8
Octal
16652253462
10
Decimal
1990809394
12
Duodecimal
47687492a
16
Hexadecimal
76a95732
20
Vigesimal
1b22b39e
36
Base36
wx9ycy
md5
bf2dd82510e3814c5b125ef14cc7f36f
sha1
dd3f20c736bbaab4ab60f3478bd7430d1ae8dd41
sha256
f668e15f00a113130e76bd44570f970dc4711a615f3b2b6380967b845f1fedd3
sha512
aafefab94e469cd3ad59c0d29a6f683018c2b0c0ff64830cda78cd5b847b11dea7133416456d5ad74c32d781eb5eceb31cf734403c9bd0c4a32f60fc900680c6
ripemd-160
250e4b84c29ec80f96479a981c8b71b765441d31
Diameter
3981618788
Circumference
12508624333.776
Area
1.2451143414849E+19
Volume
3.3050471035097E+28
Surface area
4.9804573659396E+19
Circumference
12508624333.776
Perimeter
7963237576
Area
3963322043238647236
Diagonal
2815429645.0946
Surface area
2.3779932259432E+19
Volume
7.8902187551268E+27
Space diagonal
3448183018.5934
Perimeter
5972428182
Area
1.7161687864118E+18
Altitude
1724091509.2967
Surface area
1.7161687864118E+18
Volume
9.2987119779924E+26
Height
938476548.36485