1621389 is an odd 7-digits composite number following 1621388
and preceding 1621390 . In scientific notation, it is written as 1.621389 × 10^6.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 842160 positive integers (up to 1621389) that are relatively prime to 1621389.
1621389 has 16 divisors, whose sum is 2695680
The reverse of 1621389 is 9831261
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3
Name
one million six hundred twenty-one thousand three hundred eighty-nine
Scientific notation
1.621389 × 10^6
Engineering notation
1.621389 × 10^6
Prime Factorization
3 × 7 × 11 × 7019
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1621389
Product of the distinct prime numbers
The prime factorization of 1621389 is 3 × 7 × 11 × 7019.
Since it has a total of 4 prime factors.
10 , 5 , 98 , 82 , 883 , 601 , 650 , 9864 , 90992 , 20953 , 206480 , 201807 , 5985096 , 786624 , 67043135 , 1316402 , 993391977 , 294377482 , 4295237195 , 1040484787
n×2
3242778
n×3
4864167
n×4
6485556
n×5
8106945
n÷2
810694.5
n÷3
540463
n÷3
405347.25
n÷5
324277.8
n2
2628902289321
n3
4262473253979886869
n4
6.9111272467972E+24
n5
1.1205625695557E+31
2 √n
1273.3377399575
3 √n
117.47958601143
4 √n
35.683858254923
5 √n
17.457314841716
1 , 3 , 7 , 11 , 21 , 33 , 77 , 231 , 7019 , 21057 , 49133 , 77209 , 147399 , 231627 , 540463 , 1621389
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
-1621388
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 1621389 can be divided by 16 positive divisors.
The sum of these divisors (counting 1621389) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110001011110110001101
3
Ternary
10001101010110
4
Quaternary
12023312031
5
Quinary
403341024
6
Senary
54430233
8
Octal
6136615
10
Decimal
1621389
12
Duodecimal
662379
16
Hexadecimal
18bd8d
20
Vigesimal
a2d99
36
Base36
yr2l
md5
f6cae1ebd79024fdcb35cb1fd91a38c8
sha1
0f338bfc7c690ee3f7ccb0c1c3b30f484e341eb9
sha256
6f97c367553682afed2f3f63d544bf46ce6becb5e2b51f1224f980c57b309891
sha512
317d31ecf1d55d3901bd75067c96a80d9e7508a74ec4de91d040741047ef8d27574a458939d9342ef61149dab6b59b46dc058f775fcd481b931d96ef75bd9ea8
ripemd-160
44673de4296b3a2c4ab77282d5bc5cfe046943d6
Diameter
3242778
Circumference
10187487.542023
Area
8258940119136.2
Volume
1.7854606214435E+19
Surface area
33035760476545
Circumference
10187487.542023
Perimeter
6485556
Area
2628902289321
Diagonal
2292990.3136826
Surface area
15773413735926
Volume
4262473253979886869
Space diagonal
2808328.1268333
Perimeter
4864167
Area
1138348083309.5
Altitude
1404164.0634166
Surface area
1138348083309.5
Volume
5.0233729041924E+17
Height
764330.10456085