6643921 is an odd 7-digits composite number following 6643920
and preceding 6643922 . In scientific notation, it is written as 6.643921 × 10^6.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 6417840 positive integers (up to 6643921) that are relatively prime to 6643921.
6643921 has 4 divisors, whose sum is 6649344
The reverse of 6643921 is 1293466
Previous prime number is 3551
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 31
Digital Root 4
Name
six million six hundred forty-three thousand nine hundred twenty-one
Scientific notation
6.643921 × 10^6
Engineering notation
6.643921 × 10^6
Prime Factorization
3551 × 1871
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
6643921
Product of the distinct prime numbers
The prime factorization of 6643921 is 3551 × 1871.
Since it has a total of 2 prime factors.
2 , 1 , 26 , 100 , 899 , 938 , 4880 , 5371 , 88351 , 3754 , 523627 , 606877 , 4911192 , 6919885 , 36627623 , 44065785 , 308545704 , 496768204 , 7618104839 , 3594610772
n×2
13287842
n×3
19931763
n×4
26575684
n×5
33219605
n÷2
3321960.5
n÷3
2214640.3333333
n÷3
1660980.25
n÷5
1328784.2
n2
44141686254241
n3
2.9327387627996E+20
n4
1.9484884653678E+27
n5
1.2945603433315E+34
2 √n
2577.5804546124
3 √n
187.99291696568
4 √n
50.769877433498
5 √n
23.146476637004
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-6643920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 6643921 can be divided by 4 positive divisors.
The sum of these divisors (counting 6643921) is 1, the average is 0.25.
Base
System
Value
2
Binary
11001010110000011010001
3
Ternary
110111112202011
4
Quaternary
121112003101
5
Quinary
3200101141
6
Senary
354222521
8
Octal
31260321
10
Decimal
6643921
12
Duodecimal
2284a41
16
Hexadecimal
6560d1
20
Vigesimal
21a9g1
36
Base36
3yehd
md5
7ecc5ae447db7b797bfe06529af85fd2
sha1
2d11e5fb1bcd18e12b3dff40b85c9f913b7b1b69
sha256
9a1c42c5b68147089264e78a4dd0c55e6f4eb67161e4d3a67ea8c43c5444f99c
sha512
5c1a11c3d6da9647a82111a6c56663ef75f76bf8becf731fd5226ee33c843204e304cd1748505e6a38f356dd2108cbc7322194b2fb5d42a114a9a51a11d389c0
ripemd-160
0aadc0b37d0dc9b923294e7267b0ec5a4c982d0d
Diameter
13287842
Circumference
41744986.809262
Area
1.3867519725339E+14
Volume
1.2284627402812E+21
Surface area
5.5470078901356E+14
Circumference
41744986.809262
Perimeter
26575684
Area
44141686254241
Diagonal
9395923.1855354
Surface area
264850117525446
Volume
2.9327387627996E+20
Space diagonal
11507608.733474
Perimeter
19931763
Area
19113910831028
Altitude
5753804.3667369
Surface area
19113910831028
Volume
3.4562657777071E+19
Height
3131974.3951785