1640393381 is an odd 10-digits composite number following 1640393380
and preceding 1640393382 . In scientific notation, it is written as 1.640393381 × 10^9.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 1438113600 positive integers (up to 1640393381) that are relatively prime to 1640393381.
1640393381 has 16 divisors, whose sum is 1853452800
The reverse of 1640393381 is 1833930461
Previous prime number is 991
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion six hundred forty million three hundred ninety-three thousand three hundred eighty-one
Scientific notation
1.640393381 × 10^9
Engineering notation
1.640393381 × 10^9
Prime Factorization
11 × 29 × 991 × 5189
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1640393381
Product of the distinct prime numbers
The prime factorization of 1640393381 is 11 × 29 × 991 × 5189.
Since it has a total of 4 prime factors.
9 , 5 , 37 , 20 , 271 , 550 , 2336 , 1405 , 56609 , 59732 , 319618 , 631312 , 5779120 , 9640139 , 89596766 , 65791366 , 942962005 , 748766703 , 5500790672 , 8398483131
n×2
3280786762
n×3
4921180143
n×4
6561573524
n×5
8201966905
n÷2
820196690.5
n÷3
546797793.66667
n÷3
410098345.25
n÷5
328078676.2
n2
2690890444428611161
n3
4.4141188740368E+27
n4
7.2408913839172E+36
n5
1.1877910298718E+46
2 √n
40501.77009712
3 √n
1179.3679898607
4 √n
201.25051576858
5 √n
69.660983491807
1 , 11 , 29 , 319 , 991 , 5189 , 10901 , 28739 , 57079 , 150481 , 316129 , 1655291 , 5142299 , 56565289 , 149126671 , 1640393381
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1640393380
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1640393381 can be divided by 16 positive divisors.
The sum of these divisors (counting 1640393381) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001110001100110101010100101
3
Ternary
11020022200121200102
4
Quaternary
1201301212222211
5
Quinary
11324420042011
6
Senary
430435153445
8
Octal
14161465245
10
Decimal
1640393381
12
Duodecimal
399445885
16
Hexadecimal
61c66aa5
20
Vigesimal
15cc9391
36
Base36
r4nbmt
md5
2ea4c35becd0ea41bebef60076e3204b
sha1
3f3908f439ca0211d67dee0fc5e31185e5918d47
sha256
4de22b41430e2fa673df8615d66e9db2e7c096cb19e031491eb0aef71ee4ce8f
sha512
a681a32871c3d3f3254ba80375a336a0626c871f18ab31a2d113cb65a5b68f6498fb096193c585bf18cc4c1908e5357eafe701c25d0a32c74df98fec09604e61
ripemd-160
ee7b273f917079702fadfd26ee1f3018e5560a3a
Diameter
3280786762
Circumference
10306895589.494
Area
8.4536816518319E+18
Volume
1.8489817902328E+28
Surface area
3.3814726607328E+19
Circumference
10306895589.494
Perimeter
6561573524
Area
2690890444428611161
Diagonal
2319866567.0373
Surface area
1.6145342666572E+19
Volume
4.4141188740368E+27
Space diagonal
2841244680.2917
Perimeter
4921180143
Area
1.165189741838E+18
Altitude
1420622340.1458
Surface area
1.165189741838E+18
Volume
5.202088981325E+26
Height
773288855.67909