638996961 is an odd 9-digits composite number following 638996960
and preceding 638996962 . In scientific notation, it is written as 6.38996961 × 10^8.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 402189120 positive integers (up to 638996961) that are relatively prime to 638996961.
638996961 has 16 divisors, whose sum is 899922240
The reverse of 638996961 is 169699836
Previous prime number is 293
Is Prime? no Number parity odd Number length 9 Sum of Digits 57 Digital Root 3
Name
six hundred thirty-eight million nine hundred ninety-six thousand nine hundred sixty-one
Scientific notation
6.38996961 × 10^8
Engineering notation
6.38996961 × 10^6
Prime Factorization
3 × 19 × 293 × 38261
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
638996961 Product of the distinct prime numbers
The prime factorization of 638996961 is 3 × 19 × 293 × 38261.
Since it has a total of 4 prime factors.
5 , 8 , 46 , 28 , 935 , 895 , 7700 , 4397 , 7674 , 46082 , 386275 , 404277 , 7021078 , 8532531 , 86068263 , 83893480 , 808043568 , 154183216 , 899525807 , 4080473437
n×2
1277993922
n×3
1916990883
n×4
2555987844
n×5
3194984805
n÷2
319498480.5
n÷3
212998987
n÷3
159749240.25
n÷5
127799392.2
n2
408317116167235521
n3
2.6091339635515E+26
n4
1.6672286735513E+35
n5
1.0653540556913E+44
2 √n25278.389208967
3 √n861.32343602673
4 √n158.99178975333
5 √n57.689896332524
1 , 3 , 19 , 57 , 293 , 879 , 5567 , 16701 , 38261 , 114783 , 726959 , 2180877 , 11210473 , 33631419 , 212998987 , 638996961
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
-638996960 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 638996961 can be divided by 16 positive divisors.
The sum of these divisors (counting 638996961) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000101100101000111100001
3
Ternary
1122112101102001010
4
Quaternary
212011211013201
5
Quinary
2302040400321
6
Senary
143223531133
8
Octal
4605450741
10
Decimal
638996961
12
Duodecimal
159bb9aa9
16
Hexadecimal
261651e1
20
Vigesimal
9jdec81
36
Base36
akfx7l
md5
a86c1078b3429e1c32828ae533900d91
sha1
cff5047324e6b7e989a690f406cca605d571d293
sha256
95e6c2fcbdb5228e869f74a446ab525b6d876bcccd5e36e3fc52fc4bd482a616
sha512
aade5e5021e8ef347a9a464f0ea7d45c2441e1726793767beb0a48db9df5142876b35d796bd27bbb54b9009d586f2683477dadc2f1099ca22edee1e5233421a8
ripemd-160
8921c31b6a290328ab40bc9ef68b407e46d8c1b1
Diameter
1277993922
Circumference
4014936316.6876
Area
1.282766052486E+18
Volume
1.09291147895E+27
Surface area
5.1310642099438E+18
Circumference
4014936316.6876
Perimeter
2555987844
Area
408317116167235521
Diagonal
903678168.56139
Surface area
2449902697003413126
Volume
2.6091339635515E+26
Space diagonal
1106775202.3341
Perimeter
1916990883
Area
1.7680649770041E+17
Altitude
553387601.16705
Surface area
1.7680649770041E+17
Volume
3.074893864419E+25
Height
301226056.18713