6640396721 is an odd 10-digits composite number following 6640396720
and preceding 6640396722 . In scientific notation, it is written as 6.640396721 × 10^9.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 5691768612 positive integers (up to 6640396721) that are relatively prime to 6640396721.
6640396721 has 4 divisors, whose sum is 7589024832
The reverse of 6640396721 is 1276930466
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 44
Digital Root 8
Name
six billion six hundred forty million three hundred ninety-six thousand seven hundred twenty-one
Scientific notation
6.640396721 × 10^9
Engineering notation
6.640396721 × 10^9
Prime Factorization
7 × 948628103
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
6640396721
Product of the distinct prime numbers
The prime factorization of 6640396721 is 7 × 948628103.
Since it has a total of 2 prime factors.
5 , 3 , 15 , 3 , 175 , 638 , 9020 , 4319 , 40732 , 56938 , 324503 , 113290 , 9213521 , 5316055 , 16107868 , 7928163 , 498489644 , 486491684 , 3348541337 , 1214020169
n×2
13280793442
n×3
19921190163
n×4
26561586884
n×5
33201983605
n÷2
3320198360.5
n÷3
2213465573.6667
n÷3
1660099180.25
n÷5
1328079344.2
n2
4.4094868612268E+19
n3
2.9280742094583E+29
n4
1.9443574379331E+39
n5
1.2911304755303E+49
2 √n
81488.62939699
3 √n
1879.5967070079
4 √n
285.46213303517
5 √n
92.138005158339
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
-6640396720
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 6640396721 can be divided by 4 positive divisors.
The sum of these divisors (counting 6640396721) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001011110011000110100110110001
3
Ternary
122010210002002211022
4
Quaternary
12023303012212301
5
Quinary
102044420143341
6
Senary
3014530425225
8
Octal
61363064661
10
Decimal
6640396721
12
Duodecimal
1353a32215
16
Hexadecimal
18bcc69b1
20
Vigesimal
53f29bg1
36
Base36
31tiqwh
md5
d78b20c3a4b2af5c5c8da02a659d5ddd
sha1
2e4bcbca00dd254222f07acbe19b77fcd1a44157
sha256
afc1a7879b905bf7aa510941316199983fbfa56c717370e8f781228948b0b09e
sha512
ac8e121721ae22e29b4af5902b3f8436410fb00e282c05543bb1cf18850f9a447a6252affc1ed4500bbd3a246352baef0b9e04862d67ec6a960f7dffe695f1fe
ripemd-160
f6a9713ba543a3d75c4d78cdce4ff4b7838b8910
Diameter
13280793442
Circumference
41722843111.231
Area
1.3852811529331E+20
Volume
1.2265088567466E+30
Surface area
5.5411246117323E+20
Circumference
41722843111.231
Perimeter
26561586884
Area
4.4094868612268E+19
Diagonal
9390939102.376
Surface area
2.6456921167361E+20
Volume
2.9280742094583E+29
Space diagonal
11501504503.186
Perimeter
19921190163
Area
1.909363819738E+19
Altitude
5750752251.5929
Surface area
1.909363819738E+19
Volume
3.4507685488756E+28
Height
3130313034.1253