1990681609 is an odd 10-digits composite number following 1990681608
and preceding 1990681610 . In scientific notation, it is written as 1.990681609 × 10^9.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 1706298516 positive integers (up to 1990681609) that are relatively prime to 1990681609.
1990681609 has 4 divisors, whose sum is 2275064704
The reverse of 1990681609 is 9061860991
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion nine hundred ninety million six hundred eighty-one thousand six hundred nine
Scientific notation
1.990681609 × 10^9
Engineering notation
1.990681609 × 10^9
Prime Factorization
7 × 284383087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1990681609
Product of the distinct prime numbers
The prime factorization of 1990681609 is 7 × 284383087.
Since it has a total of 2 prime factors.
3 , 1 , 55 , 7 , 471 , 271 , 8627 , 9574 , 8574 , 42109 , 49757 , 104462 , 868667 , 7855053 , 83783590 , 25322484 , 103787655 , 990964863 , 390357686 , 77920209
n×2
3981363218
n×3
5972044827
n×4
7962726436
n×5
9953408045
n÷2
995340804.5
n÷3
663560536.33333
n÷3
497670402.25
n÷5
398136321.8
n2
3962813268410828881
n3
7.8886994933266E+27
n4
1.5703889000293E+37
n5
3.1261443022661E+46
2 √n
44617.055135901
3 √n
1257.9612635649
4 √n
211.22749616445
5 √n
72.410302343069
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990681608
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990681609 can be divided by 4 positive divisors.
The sum of these divisors (counting 1990681609) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101001110110010000001001
3
Ternary
12010201211002210111
4
Quaternary
1312221312100021
5
Quinary
13034103302414
6
Senary
525311114321
8
Octal
16651662011
10
Decimal
1990681609
12
Duodecimal
4768129a1
16
Hexadecimal
76a76409
20
Vigesimal
1b21f409
36
Base36
wx77rd
md5
520f3620a985c4635f6bd6a9956b4e3e
sha1
bac548ddaab4527a448c39ca641ff3c374d37276
sha256
7f5d794487deaefa0a8b522ff1f3955cd186b1c0021921234dbde679fd852e41
sha512
2f8ba6b3319d6b77029ae3ab7d1d43043f69454a97b8f327711ae2023450ee7fcdf0509774b79c746dc8605108b240dc6ab933b66b0a4830a7c98804beda5675
ripemd-160
10a92f71f289bf8ef11fd20d4d493a613268b266
Diameter
3981363218
Circumference
12507821436.941
Area
1.2449545051588E+19
Volume
3.304410716615E+28
Surface area
4.979818020635E+19
Circumference
12507821436.941
Perimeter
7962726436
Area
3962813268410828881
Diagonal
2815248929.8145
Surface area
2.3776879610465E+19
Volume
7.8886994933266E+27
Space diagonal
3447961688.481
Perimeter
5972044827
Area
1.7159484804489E+18
Altitude
1723980844.2405
Surface area
1.7159484804489E+18
Volume
9.2969215107902E+26
Height
938416309.93816