1640985 is an odd 7-digits composite number following 1640984
and preceding 1640986 . In scientific notation, it is written as 1.640985 × 10^6.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 846720 positive integers (up to 1640985) that are relatively prime to 1640985.
1640985 has 16 divisors, whose sum is 2711040
The reverse of 1640985 is 5890461
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 33
Digital Root 6
Name
one million six hundred forty thousand nine hundred eighty-five
Scientific notation
1.640985 × 10^6
Engineering notation
1.640985 × 10^6
Prime Factorization
5 × 3 × 31 × 3529
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1640985
Product of the distinct prime numbers
The prime factorization of 1640985 is 5 × 3 × 31 × 3529.
Since it has a total of 4 prime factors.
3 , 2 , 32 , 16 , 621 , 286 , 2134 , 138 , 32264 , 42023 , 193062 , 47497 , 9656722 , 4678450 , 25395029 , 74878863 , 372571647 , 736924091 , 7665046975 , 5656562891
n×2
3281970
n×3
4922955
n×4
6563940
n×5
8204925
n÷2
820492.5
n÷3
546995
n÷3
410246.25
n÷5
328197
n2
2692831770225
n3
4418896542462671625
n4
7.2513429427331E+24
n5
1.1899344998881E+31
2 √n
1281.0093676472
3 √n
117.95097551743
4 √n
35.791191201848
5 √n
17.499309899761
1 , 3 , 5 , 15 , 31 , 93 , 155 , 465 , 3529 , 10587 , 17645 , 52935 , 109399 , 328197 , 546995 , 1640985
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
-1640984
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 1640985 can be divided by 16 positive divisors.
The sum of these divisors (counting 1640985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110010000101000011001
3
Ternary
10002101000020
4
Quaternary
12100220121
5
Quinary
410002420
6
Senary
55101053
8
Octal
6205031
10
Decimal
1640985
12
Duodecimal
671789
16
Hexadecimal
190a19
20
Vigesimal
a5295
36
Base36
z66x
md5
e1f48cb9fd1816055fb716c35e308f62
sha1
e3fa40001733a2a2829969246071cec86e8e142d
sha256
9dd481b5086decc3f30808f6b99c4a64f8c1aa00397e9c90d5b8883f8af917ac
sha512
f38d7ad9a56e2eceeaca736ba35b96aa96bfb9365e0c9d0ba6ab4258ca4fe664f9ed8be0fa484a56730bb344125c21bb3e4594b2606f5a75184724bdc758fc43
ripemd-160
6536f698a6f22f3010d3c80a382b685004b6e45b
Diameter
3281970
Circumference
10310612.841302
Area
8459780506692.1
Volume
1.8509830553032E+19
Surface area
33839122026768
Circumference
10310612.841302
Perimeter
6563940
Area
2692831770225
Diagonal
2320703.2426508
Surface area
16156990621350
Volume
4418896542462671625
Space diagonal
2842269.3944584
Perimeter
4922955
Area
1166030360566.3
Altitude
1421134.6972292
Surface area
1166030360566.3
Volume
5.2077195175619E+17
Height
773567.74755027