1990809393 is an odd 10-digits composite number following 1990809392
and preceding 1990809394 . In scientific notation, it is written as 1.990809393 × 10^9.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 1325894064 positive integers (up to 1990809393) that are relatively prime to 1990809393.
1990809393 has 8 divisors, whose sum is 2657036928
The reverse of 1990809393 is 3939080991
Previous prime number is 1013
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
one billion nine hundred ninety million eight hundred nine thousand three hundred ninety-three
Scientific notation
1.990809393 × 10^9
Engineering notation
1.990809393 × 10^9
Prime Factorization
3 × 1013 × 655087
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990809393
Product of the distinct prime numbers
The prime factorization of 1990809393 is 3 × 1013 × 655087.
Since it has a total of 3 prime factors.
6 , 7 , 38 , 79 , 232 , 313 , 1932 , 2692 , 40737 , 49837 , 27048 , 675910 , 8600889 , 2087062 , 16832719 , 76861239 , 249076335 , 482102590 , 4758515416 , 3933073801
n×2
3981618786
n×3
5972428179
n×4
7963237572
n×5
9954046965
n÷2
995404696.5
n÷3
663603131
n÷3
497702348.25
n÷5
398161878.6
n2
3963322039257028449
n3
7.8902187432368E+27
n4
1.570792158686E+37
n5
3.1271477839629E+46
2 √n
44618.487121372
3 √n
1257.9881796192
4 √n
211.23088581306
5 √n
72.411231938285
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
-1990809392
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 1990809393 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990809393) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101010010101011100110001
3
Ternary
12010202001121002020
4
Quaternary
1312222111130301
5
Quinary
13034121400033
6
Senary
525313542053
8
Octal
16652253461
10
Decimal
1990809393
12
Duodecimal
476874929
16
Hexadecimal
76a95731
20
Vigesimal
1b22b39d
36
Base36
wx9ycx
md5
5cf77b35e307202318afad689f48a0a7
sha1
245a01405989f30ac2749966ceb2cb8326d3469d
sha256
06cb186c2ba3708894c9df6faad7bf8543e257a7807ddf19a85dda7a25e5b3cd
sha512
024c2408953383a19ee2cc311c2477f4ef49fae062476ddcf10e284f796c77c4b2586ac90c75ad7c095220a66b0242f5052facd83cf5e606bbace116380bdaf0
ripemd-160
991e08f6973f3a30f23af7de3a4be29540177196
Diameter
3981618786
Circumference
12508624327.493
Area
1.245114340234E+19
Volume
3.3050470985292E+28
Surface area
4.9804573609362E+19
Circumference
12508624327.493
Perimeter
7963237572
Area
3963322039257028449
Diagonal
2815429643.6803
Surface area
2.3779932235542E+19
Volume
7.8902187432368E+27
Space diagonal
3448183016.8614
Perimeter
5972428179
Area
1.7161687846877E+18
Altitude
1724091508.4307
Surface area
1.7161687846877E+18
Volume
9.2987119639799E+26
Height
938476547.89345