8157406721 is an odd 10-digits composite number following 8157406720
and preceding 8157406722 . In scientific notation, it is written as 8.157406721 × 10^9.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 8155374000 positive integers (up to 8157406721) that are relatively prime to 8157406721.
8157406721 has 4 divisors, whose sum is 8159439444
The reverse of 8157406721 is 1276047518
Previous prime number is 4021
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 41
Digital Root 5
Name
eight billion one hundred fifty-seven million four hundred six thousand seven hundred twenty-one
Scientific notation
8.157406721 × 10^9
Engineering notation
8.157406721 × 10^9
Prime Factorization
4021 × 2028701
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
8157406721
Product of the distinct prime numbers
The prime factorization of 8157406721 is 4021 × 2028701.
Since it has a total of 2 prime factors.
3 , 1 , 62 , 77 , 281 , 793 , 4093 , 5105 , 4566 , 70386 , 575113 , 818017 , 5264843 , 1635101 , 92818827 , 19399831 , 254885424 , 249649467 , 1300212057 , 126681372
n×2
16314813442
n×3
24472220163
n×4
32629626884
n×5
40787033605
n÷2
4078703360.5
n÷3
2719135573.6667
n÷3
2039351680.25
n÷5
1631481344.2
n2
6.6543284411816E+19
n3
5.4282063549836E+29
n4
4.4280087003118E+39
n5
3.612106793257E+49
2 √n
90318.363143937
3 √n
2013.0321241758
4 √n
300.53013683146
5 √n
96.008663320937
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
-8157406720
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 8157406721 can be divided by 4 positive divisors.
The sum of these divisors (counting 8157406721) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110001110000010011000000001
3
Ternary
210001111121012022212
4
Quaternary
13212032002120001
5
Quinary
113201244003341
6
Senary
3425241311505
8
Octal
74616023001
10
Decimal
8157406721
12
Duodecimal
16b7a95595
16
Hexadecimal
1e6382601
20
Vigesimal
6793fgg1
36
Base36
3qwpjb5
md5
14d964f6d335e8f290e16a920eaffd50
sha1
6fd5a4269e5a8c8b526af88a9c04a98d94eee06b
sha256
ecdb3028d339a7a90d836c292cc401265c7ac7ae0a60d392f42f03f6a3217912
sha512
dd828fff978616c2c3a790bc5ccc25b448ba66fc3724714a6faa880a345b4327557b247577919b5b8a47c4c146b22c9cc670311d9c2cb92dfa2d0dab3da671b4
ripemd-160
280d3519ad01f250cc372b4c81dd441e9bb7ee38
Diameter
16314813442
Circumference
51254498054.075
Area
2.090518934539E+20
Volume
2.2737617609315E+30
Surface area
8.3620757381559E+20
Circumference
51254498054.075
Perimeter
32629626884
Area
6.6543284411816E+19
Diagonal
11536315218.632
Surface area
3.992597064709E+20
Volume
5.4282063549836E+29
Space diagonal
14129042898.776
Perimeter
24472220163
Area
2.8814087375943E+19
Altitude
7064521449.3879
Surface area
2.8814087375943E+19
Volume
6.3972025388147E+28
Height
3845438406.2105