1945990809 is an odd 10-digits composite number following 1945990808
and preceding 1945990810 . In scientific notation, it is written as 1.945990809 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 1104526368 positive integers (up to 1945990809) that are relatively prime to 1945990809.
1945990809 has 16 divisors, whose sum is 2487696000
The reverse of 1945990809 is 9080995491
Previous prime number is 149
Is Prime? no Number parity odd Number length 10 Sum of Digits 54 Digital Root 9
Name
one billion nine hundred forty-five million nine hundred ninety thousand eight hundred nine
Scientific notation
1.945990809 × 10^9
Engineering notation
1.945990809 × 10^9
Prime Factorization
9 × 7 × 149 × 207307
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1945990809 Product of the distinct prime numbers
The prime factorization of 1945990809 is 9 × 7 × 149 × 207307.
Since it has a total of 4 prime factors.
1 , 8 , 85 , 96 , 401 , 709 , 2550 , 7240 , 86367 , 30450 , 785171 , 240111 , 3941061 , 1041707 , 32613825 , 48515718 , 802440036 , 509944788 , 1377256022 , 4484611961
n×2
3891981618
n×3
5837972427
n×4
7783963236
n×5
9729954045
n÷2
972995404.5
n÷3
648663603
n÷3
486497702.25
n÷5
389198161.8
n2
3786880228712474481
n3
7.3692341198583E+27
n4
1.4340461866613E+37
n5
2.7906406989245E+46
2 √n44113.38582562
3 √n1248.4761823921
4 √n210.03186859527
5 √n72.082220547652
1 , 7 , 9 , 63 , 149 , 1043 , 1341 , 9387 , 207307 , 1451149 , 1865763 , 13060341 , 30888743 , 216221201 , 277998687 , 1945990809
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1945990808 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1945990809 can be divided by 16 positive divisors.
The sum of these divisors (counting 1945990809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110011111111010111011010011001
3
Ternary
12000121201120112200
4
Quaternary
1303333113122121
5
Quinary
12441133201214
6
Senary
521033200413
8
Octal
16377273231
10
Decimal
1945990809
12
Duodecimal
463860109
16
Hexadecimal
73fd7699
20
Vigesimal
1a828h09
36
Base36
w6lc49
md5
0c8c4028c76cf0e947ef5de0d8a730b2
sha1
2178e05e5e848837d2476921f0154ece5b29713f
sha256
c45d7095c45ab34e97ddd7592fd901ba2d9411444ce658f2437c418e096f6b64
sha512
da4352db7efe9e5eadf176f3499e43ce64d592c98d261a48018f30be6da973ce363ee1ae5d60886468377702846f7735c51c4afcc842cbfd91c43aeaea180d87
ripemd-160
a20de42e35bb7b1a3baf556773e458ff5ea13c0c
Diameter
3891981618
Circumference
12227020859.015
Area
1.1896835106548E+19
Volume
3.086817569804E+28
Surface area
4.758734042619E+19
Circumference
12227020859.015
Perimeter
7783963236
Area
3786880228712474481
Diagonal
2752046594.3412
Surface area
2.2721281372275E+19
Volume
7.3692341198583E+27
Space diagonal
3370554952.2501
Perimeter
5837972427
Area
1.639767239577E+18
Altitude
1685277476.125
Surface area
1.639767239577E+18
Volume
8.6847256971718E+26
Height
917348864.7804