1990408897 is an odd 10-digits composite number following 1990408896
and preceding 1990408898 . In scientific notation, it is written as 1.990408897 × 10^9.
The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors.
There are 1827200592 positive integers (up to 1990408897) that are relatively prime to 1990408897.
1990408897 has 16 divisors, whose sum is 2160885760
The reverse of 1990408897 is 7988040991
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 55
Digital Root 1
Name
one billion nine hundred ninety million four hundred eight thousand eight hundred ninety-seven
Scientific notation
1.990408897 × 10^9
Engineering notation
1.990408897 × 10^9
Prime Factorization
19 × 43 × 127 × 19183
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1990408897
Product of the distinct prime numbers
The prime factorization of 1990408897 is 19 × 43 × 127 × 19183.
Since it has a total of 4 prime factors.
7 , 9 , 26 , 13 , 972 , 297 , 784 , 9905 , 59912 , 87879 , 531724 , 292605 , 4564371 , 2439246 , 8585076 , 92118094 , 689608981 , 943823467 , 7371842360 , 8085246996
n×2
3980817794
n×3
5971226691
n×4
7961635588
n×5
9952044485
n÷2
995204448.5
n÷3
663469632.33333
n÷3
497602224.25
n÷5
398081779.4
n2
3961727577256756609
n3
7.8854578172621E+27
n4
1.5695285396397E+37
n5
3.1240035693942E+46
2 √n
44613.998890483
3 √n
1257.903816441
4 √n
211.22026155292
5 √n
72.408318274851
1 , 19 , 43 , 127 , 817 , 2413 , 5461 , 19183 , 103759 , 364477 , 824869 , 2436241 , 15672511 , 46288579 , 104758363 , 1990408897
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
-1990408896
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 1990408897 can be divided by 16 positive divisors.
The sum of these divisors (counting 1990408897) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101000110011101011000001
3
Ternary
12010201022020201001
4
Quaternary
1312220303223001
5
Quinary
13034021041042
6
Senary
525301212001
8
Octal
16650635301
10
Decimal
1990408897
12
Duodecimal
476701001
16
Hexadecimal
76a33ac1
20
Vigesimal
1b20124h
36
Base36
wx1dc1
md5
6664b942fc6900afd4bfccdbdc0bb991
sha1
a93c9ce586eac0d561b8d40944dd52eaad8e60d8
sha256
d5d6774ab891cb7779ac3fbab116a5bc3119986e2690848219478d7174efb9d4
sha512
ba14cd1dc10d076e3a361f7c8efdccba4c61fe8ea929a011e7d05daa03a5f49ec681992e119244e1ed1fe455b786dc005991e916cdd0ae70809df2f8ca5234ea
ripemd-160
6fa21d830890de05ba6d8388fdd1ca1e30c75d97
Diameter
3980817794
Circumference
12506107936.91
Area
1.2446134252234E+19
Volume
3.3030528465204E+28
Surface area
4.9784537008936E+19
Circumference
12506107936.91
Perimeter
7961635588
Area
3961727577256756609
Diagonal
2814863256.8055
Surface area
2.3770365463541E+19
Volume
7.8854578172621E+27
Space diagonal
3447489337.4411
Perimeter
5971226691
Area
1.7154783623889E+18
Altitude
1723744668.7206
Surface area
1.7154783623889E+18
Volume
9.2931011589108E+26
Height
938287752.26849