1640881 is an odd 7-digits composite number following 1640880
and preceding 1640882 . In scientific notation, it is written as 1.640881 × 10^6.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 1463000 positive integers (up to 1640881) that are relatively prime to 1640881.
1640881 has 12 divisors, whose sum is 1838592
The reverse of 1640881 is 1880461
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million six hundred forty thousand eight hundred eighty-one
Scientific notation
1.640881 × 10^6
Engineering notation
1.640881 × 10^6
Prime Factorization
11 × 11 × 191 × 71
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
149171
Product of the distinct prime numbers
The prime factorization of 1640881 is 11 × 11 × 191 × 71.
Since it has a total of 4 prime factors.
1 , 5 , 49 , 15 , 895 , 633 , 9671 , 8235 , 38603 , 60642 , 238078 , 689899 , 3877776 , 5706707 , 14359588 , 10257805 , 724474573 , 583513233 , 3922455606 , 4196482532
n×2
3281762
n×3
4922643
n×4
6563524
n×5
8204405
n÷2
820440.5
n÷3
546960.33333333
n÷3
410220.25
n÷5
328176.2
n2
2692490456161
n3
4418056432195917841
n4
7.2495048565181E+24
n5
1.1895574778468E+31
2 √n
1280.9687740144
3 √n
117.94848368872
4 √n
35.790624107641
5 √n
17.499088084891
1 , 11 , 71 , 121 , 191 , 781 , 2101 , 8591 , 13561 , 23111 , 149171 , 1640881
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1640880
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1640881 can be divided by 12 positive divisors.
The sum of these divisors (counting 1640881) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110010000100110110001
3
Ternary
10002100212101
4
Quaternary
12100212301
5
Quinary
410002011
6
Senary
55100401
8
Octal
6204661
10
Decimal
1640881
12
Duodecimal
671701
16
Hexadecimal
1909b1
20
Vigesimal
a5241
36
Base36
z641
md5
34c442076778ac51d66bb223dd3a0c95
sha1
03b15898473f5ffc242c040475de24fef8b93985
sha256
b0430138747e634039439dbef2482260c51d2c80d2f0b7729653667f1bb282d5
sha512
b3e82a62f232bd0dd2327ded737363bf1e8f0b312cb6f20487fe0c87e86751d125f9bad6bf9c1f72189cbb31a3d6e779fc68645664c998c864b8539d890c2a1c
ripemd-160
661c07375cb22bbf68f4ba303387f4c2e9f9a580
Diameter
3281762
Circumference
10309959.39003
Area
8458708236936
Volume
1.8506311507376E+19
Surface area
33834832947744
Circumference
10309959.39003
Perimeter
6563524
Area
2692490456161
Diagonal
2320556.1644403
Surface area
16154942736966
Volume
4418056432195917841
Space diagonal
2842089.2611744
Perimeter
4922643
Area
1165882567241.3
Altitude
1421044.6305872
Surface area
1165882567241.3
Volume
5.2067294381176E+17
Height
773518.72148011