8121381937 is an odd 10-digits composite number following 8121381936
and preceding 8121381938 . In scientific notation, it is written as 8.121381937 × 10^9.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 7742074704 positive integers (up to 8121381937) that are relatively prime to 8121381937.
8121381937 has 8 divisors, whose sum is 8507779200
The reverse of 8121381937 is 7391831218
Previous prime number is 79
Is Prime? no Number parity odd Number length 10 Sum of Digits 43 Digital Root 7
Name
eight billion one hundred twenty-one million three hundred eighty-one thousand nine hundred thirty-seven
Scientific notation
8.121381937 × 10^9
Engineering notation
8.121381937 × 10^9
Prime Factorization
29 × 79 × 3544907
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
8121381937 Product of the distinct prime numbers
The prime factorization of 8121381937 is 29 × 79 × 3544907.
Since it has a total of 3 prime factors.
8 , 3 , 32 , 78 , 64 , 536 , 5999 , 5731 , 39204 , 63202 , 129296 , 614601 , 5350126 , 6499561 , 82570127 , 21506428 , 153277379 , 665972038 , 765507408 , 6391025457
n×2
16242763874
n×3
24364145811
n×4
32485527748
n×5
40606909685
n÷2
4060690968.5
n÷3
2707127312.3333
n÷3
2030345484.25
n÷5
1624276387.4
n2
6.595684456663E+19
n3
5.3566072608494E+29
n4
4.3503053451866E+39
n5
3.5330491250833E+49
2 √n90118.710249315
3 √n2010.0644300857
4 √n300.1977852172
5 √n95.923714330831
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
-8121381936 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 8121381937 can be divided by 8 positive divisors.
The sum of these divisors (counting 8121381937) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100100000100100111010000110001
3
Ternary
202221222210221121121
4
Quaternary
13210010213100301
5
Quinary
113113033210222
6
Senary
3421513222241
8
Octal
74404472061
10
Decimal
8121381937
12
Duodecimal
16a7a01981
16
Hexadecimal
1e4127431
20
Vigesimal
66hicegh
36
Base36
3qb9eep
md5
f9ef32e096043d84103902df5808d368
sha1
2acdf874f7de6680a4cce99553d62d4f22e0e9ce
sha256
188a140abfcc33d55cb6b58fee1b683d0fc6c59523720227d6563a0169941f48
sha512
a07e4af06906e967a03a3030fc0b822592f21b78c55374c5d6f664133a7bf3ae4f409f1a06a113c9535bd3c2abc25cc5c57bb936aa4edd702c257d6336590e09
ripemd-160
909ec7e94b2919dd4ea343df80e4d46a2bd1de42
Diameter
16242763874
Circumference
51028147660.552
Area
2.0720953834449E+20
Volume
2.2437704025134E+30
Surface area
8.2883815337795E+20
Circumference
51028147660.552
Perimeter
32485527748
Area
6.595684456663E+19
Diagonal
11485368480.517
Surface area
3.9574106739978E+20
Volume
5.3566072608494E+29
Space diagonal
14066646142.556
Perimeter
24364145811
Area
2.8560151474082E+19
Altitude
7033323071.2781
Surface area
2.8560151474082E+19
Volume
6.3128221971662E+28
Height
3828456160.1724