6981921 is an odd 7-digits composite number following 6981920
and preceding 6981922 . In scientific notation, it is written as 6.981921 × 10^6.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 4642560 positive integers (up to 6981921) that are relatively prime to 6981921.
6981921 has 8 divisors, whose sum is 7777800
The reverse of 6981921 is 1291896
Previous prime number is 521
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 36
Digital Root 9
Name
six million nine hundred eighty-one thousand nine hundred twenty-one
Scientific notation
6.981921 × 10^6
Engineering notation
6.981921 × 10^6
Prime Factorization
9 × 521 × 1489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6981921
Product of the distinct prime numbers
The prime factorization of 6981921 is 9 × 521 × 1489.
Since it has a total of 3 prime factors.
6 , 6 , 19 , 25 , 105 , 682 , 7749 , 2988 , 56337 , 28333 , 515194 , 718277 , 7732713 , 9180428 , 18013842 , 84839369 , 386665603 , 648243671 , 1501385669 , 8536483183
n×2
13963842
n×3
20945763
n×4
27927684
n×5
34909605
n÷2
3490960.5
n÷3
2327307
n÷3
1745480.25
n÷5
1396384.2
n2
48747220850241
n3
3.4034924494594E+20
n4
2.3762915406222E+27
n5
1.6591079809592E+34
2 √n
2642.3324923257
3 √n
191.12829113878
4 √n
51.403623338493
5 √n
23.377334231372
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-6981920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 6981921 can be divided by 8 positive divisors.
The sum of these divisors (counting 6981921) is 1, the average is 0.125.
Base
System
Value
2
Binary
11010101000100100100001
3
Ternary
111010201101200
4
Quaternary
122220210201
5
Quinary
3241410141
6
Senary
405351413
8
Octal
32504441
10
Decimal
6981921
12
Duodecimal
2408569
16
Hexadecimal
6a8921
20
Vigesimal
23ceg1
36
Base36
45na9
md5
1046fe499404d4a3aa2a37ed1ccf7c91
sha1
6b273dcba721c861b8aeaf9eb742ec6145a3bfc0
sha256
8a90a19aafadbb08ef136d905109b786cb07e13d889ca56dbc87a042e2457cfb
sha512
09bd19e92588e207ef73ed6490a03a85a4c718584cbe3fc267d475ae6f4fd4ec099d8b93180d7d0075ce0f2ae90f4b45f0ea7099e5d34e1471076a4da4f946a3
ripemd-160
0a4960ce314961673539bab0cb5fdc5c468f8315
Diameter
13963842
Circumference
43868703.443089
Area
1.5314391090604E+14
Volume
1.425651583436E+21
Surface area
6.1257564362415E+14
Circumference
43868703.443089
Perimeter
27927684
Area
48747220850241
Diagonal
9873927.3696175
Surface area
292483325101446
Volume
3.4034924494594E+20
Space diagonal
12093041.906432
Perimeter
20945763
Area
21108165810100
Altitude
6046520.9532161
Surface area
21108165810100
Volume
4.0110543178832E+19
Height
3291309.1232058