8121381938 is an even 10-digits composite number following 8121381937
and preceding 8121381939 . In scientific notation, it is written as 8.121381938 × 10^9.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 4057385680 positive integers (up to 8121381938) that are relatively prime to 8121381938.
8121381938 has 8 divisors, whose sum is 12191988780
The reverse of 8121381938 is 8391831218
Previous prime number is 1229
Is Prime? no Number parity even Number length 10 Sum of Digits 44 Digital Root 8
Name
eight billion one hundred twenty-one million three hundred eighty-one thousand nine hundred thirty-eight
Scientific notation
8.121381938 × 10^9
Engineering notation
8.121381938 × 10^9
Prime Factorization
2 × 1229 × 3304061
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
8121381938 Product of the distinct prime numbers
The prime factorization of 8121381938 is 2 × 1229 × 3304061.
Since it has a total of 3 prime factors.
4 , 5 , 1 , 97 , 197 , 498 , 1942 , 2151 , 2164 , 64443 , 303464 , 802954 , 9037914 , 3265925 , 17002340 , 5762274 , 765101101 , 384409432 , 3946541650 , 6420959039
n×2
16242763876
n×3
24364145814
n×4
32485527752
n×5
40606909690
n÷2
4060690969
n÷3
2707127312.6667
n÷3
2030345484.5
n÷5
1624276387.6
n2
6.5956844582873E+19
n3
5.3566072628281E+29
n4
4.3503053473292E+39
n5
3.5330491272584E+49
2 √n90118.710254863
3 √n2010.0644301682
4 √n300.19778522645
5 √n95.923714333193
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
-8121381937 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 8121381938 can be divided by 8 positive divisors.
The sum of these divisors (counting 8121381938) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100100000100100111010000110010
3
Ternary
202221222210221121122
4
Quaternary
13210010213100302
5
Quinary
113113033210223
6
Senary
3421513222242
8
Octal
74404472062
10
Decimal
8121381938
12
Duodecimal
16a7a01982
16
Hexadecimal
1e4127432
20
Vigesimal
66hicegi
36
Base36
3qb9eeq
md5
2927e789e399117a6b6d04090e7b218a
sha1
e3aa0cf02284a7071ae7c2382c887dc2a46d3a0a
sha256
2218e6f73ac00997fe9a6d10751eef9a93072bb657719314c0097db4bd1d3ec3
sha512
2f5348480e2b9b4eb48b686a9612ec33d623ca5a84f9d3df3e44a3b9aed3b84ed249c9813e3a465c78b01358bda8edd75695e6ccc42e46b74c4f5a549cbe65f1
ripemd-160
4465ab853a456d5fa4c446dd9c7a82239f3f487d
Diameter
16242763876
Circumference
51028147666.835
Area
2.0720953839552E+20
Volume
2.2437704033422E+30
Surface area
8.2883815358207E+20
Circumference
51028147666.835
Perimeter
32485527752
Area
6.5956844582873E+19
Diagonal
11485368481.931
Surface area
3.9574106749724E+20
Volume
5.3566072628281E+29
Space diagonal
14066646144.288
Perimeter
24364145814
Area
2.8560151481115E+19
Altitude
7033323072.1441
Surface area
2.8560151481115E+19
Volume
6.3128221994982E+28
Height
3828456160.6438