7218897421 is an odd 10-digits prime number following 7218897420
and preceding 7218897422 . In scientific notation, it is written as 7.218897421 × 10^9.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 7218897420 positive integers (up to 7218897421) that are relatively prime to 7218897421.
7218897421 has 2 divisors, whose sum is 7218897422
The reverse of 7218897421 is 1247988127
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 49
Digital Root 4
Name
seven billion two hundred eighteen million eight hundred ninety-seven thousand four hundred twenty-one
Scientific notation
7.218897421 × 10^9
Engineering notation
7.218897421 × 10^9
Prime Factorization
7218897421
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
7218897421
Product of the distinct prime numbers
The prime factorization of 7218897421 is 7218897421.
Since it has a total of 1 prime factors.
2 , 9 , 52 , 6 , 954 , 914 , 9055 , 3258 , 44968 , 43087 , 264236 , 831715 , 9000495 , 658472 , 64682786 , 15807411 , 985195148 , 862934106 , 4513516394 , 302217999
n×2
14437794842
n×3
21656692263
n×4
28875589684
n×5
36094487105
n÷2
3609448710.5
n÷3
2406299140.3333
n÷3
1804724355.25
n÷5
1443779484.2
n2
5.211247997492E+19
n3
3.7619464729287E+29
n4
2.7157105691365E+39
n5
1.9604436023722E+49
2 √n
84964.094893078
3 √n
1932.6666692282
4 √n
291.48601148782
5 √n
93.69020174479
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
7218897422
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
3609448711
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
84964.094898963
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999997229
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 7218897421 can be divided by 2 positive divisors.
The sum of these divisors (counting 7218897421) is 7218897422, the average is 3609448711.
Base
System
Value
2
Binary
110101110010001111010001000001101
3
Ternary
200122002121222121011
4
Quaternary
12232101322020031
5
Quinary
104241014204141
6
Senary
3152154005221
8
Octal
65621721015
10
Decimal
7218897421
12
Duodecimal
1495716811
16
Hexadecimal
1ae47a20d
20
Vigesimal
5cfi23b1
36
Base36
3bdy0wd
md5
7679362e7c75b3ecadf42714e3abc99e
sha1
5d5e49ad96b7d863e111a12cad2c7524329a2cac
sha256
bb6c9fbf3cb5213581826d11935849589348666e4454a81ea775e9930f99db99
sha512
1d3060ce1d63ec0cf4c92552cbd41cfdfe678a9e86afd08d01aed8b9fc404eca41135ed92017f943f9a671e85d8e1f2da01a0cb8ec3616862592c0e52a9a7b7e
ripemd-160
6df828b66e3d71352500e93d2c4fbbd000603963
Diameter
14437794842
Circumference
45357670209.664
Area
1.6371618424956E+20
Volume
1.5758004536734E+30
Surface area
6.5486473699822E+20
Circumference
45357670209.664
Perimeter
28875589684
Area
5.211247997492E+19
Diagonal
10209062638.158
Surface area
3.1267487984952E+20
Volume
3.7619464729287E+29
Space diagonal
12503497107.8
Perimeter
21656692263
Area
2.2565365756244E+19
Altitude
6251748553.9
Surface area
2.2565365756244E+19
Volume
4.4334964357811E+28
Height
3403020879.3861