1990685 is an odd 7-digits composite number following 1990684
and preceding 1990686 . In scientific notation, it is written as 1.990685 × 10^6.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 1514688 positive integers (up to 1990685) that are relatively prime to 1990685.
1990685 has 16 divisors, whose sum is 2509056
The reverse of 1990685 is 5860991
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million nine hundred ninety thousand six hundred eighty-five
Scientific notation
1.990685 × 10^6
Engineering notation
1.990685 × 10^6
Prime Factorization
197 × 5 × 47 × 43
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1990685
Product of the distinct prime numbers
The prime factorization of 1990685 is 197 × 5 × 47 × 43.
Since it has a total of 4 prime factors.
4 , 9 , 36 , 75 , 759 , 18 , 7873 , 8617 , 79015 , 56659 , 44153 , 913465 , 8112593 , 887875 , 71579631 , 87150087 , 885346417 , 377538207 , 3824755106 , 2279436056
n×2
3981370
n×3
5972055
n×4
7962740
n×5
9953425
n÷2
995342.5
n÷3
663561.66666667
n÷3
497671.25
n÷5
398137
n2
3962826769225
n3
7888739807094669125
n4
1.5703996002886E+25
n5
3.1261709283006E+31
2 √n
1410.9163688894
3 √n
125.79619778503
4 √n
37.562166722507
5 √n
18.188651792343
1 , 5 , 43 , 47 , 197 , 215 , 235 , 985 , 2021 , 8471 , 9259 , 10105 , 42355 , 46295 , 398137 , 1990685
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
-1990684
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 1990685 can be divided by 16 positive divisors.
The sum of these divisors (counting 1990685) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100110000000011101
3
Ternary
10202010201002
4
Quaternary
13212000131
5
Quinary
1002200220
6
Senary
110400045
8
Octal
7460035
10
Decimal
1990685
12
Duodecimal
800025
16
Hexadecimal
1e601d
20
Vigesimal
c8ge5
36
Base36
16o0t
md5
3e4e4e710f1bc6cf824846a1807544d5
sha1
daa127762365e41343d18b0c805291c1d77dbb68
sha256
4da475a40126f4a0700745cf386d55caaaf2ba8756bfbe9e64a6d17f9d5e924e
sha512
252c883505452987dce95953c8638b607fff411a130e8f0a83c1f509b46304135ebc33d3ee6379c2af8bc48705b976e8f344dee85373ecae78cac3a22972511a
ripemd-160
1167bafdfd6724c1f7fd2200fb3b16a82c3c3e6d
Diameter
3981370
Circumference
12507842.743223
Area
12449587465646
Volume
3.3044276032067E+19
Surface area
49798349862585
Circumference
12507842.743223
Perimeter
7962740
Area
3962826769225
Diagonal
2815253.7254127
Surface area
23776960615350
Volume
7888739807094669125
Space diagonal
3447967.5618653
Perimeter
5972055
Area
1715954326472.9
Altitude
1723983.7809326
Surface area
1715954326472.9
Volume
9.2969690210215E+17
Height
938417.9084709