2638943921 is an odd 10-digits composite number following 2638943920
and preceding 2638943922 . In scientific notation, it is written as 2.638943921 × 10^9.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 2581835008 positive integers (up to 2638943921) that are relatively prime to 2638943921.
2638943921 has 8 divisors, whose sum is 2696094720
The reverse of 2638943921 is 1293498362
Previous prime number is 17729
Is Prime? no Number parity odd Number length 10 Sum of Digits 47 Digital Root 2
Name
two billion six hundred thirty-eight million nine hundred forty-three thousand nine hundred twenty-one
Scientific notation
2.638943921 × 10^9
Engineering notation
2.638943921 × 10^9
Prime Factorization
47 × 17729 × 3167
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
2638943921 Product of the distinct prime numbers
The prime factorization of 2638943921 is 47 × 17729 × 3167.
Since it has a total of 3 prime factors.
6 , 4 , 82 , 60 , 605 , 324 , 3933 , 7437 , 71289 , 63320 , 245111 , 745728 , 159642 , 1231810 , 4228912 , 31709650 , 757216704 , 595623289 , 5353954260 , 8586266429
n×2
5277887842
n×3
7916831763
n×4
10555775684
n×5
13194719605
n÷2
1319471960.5
n÷3
879647973.66667
n÷3
659735980.25
n÷5
527788784.2
n2
6964025018182854241
n3
1.8377671487426E+28
n4
4.8497644453877E+37
n5
1.2798256401438E+47
2 √n51370.652331852
3 √n1381.900329684
4 √n226.65094822624
5 √n76.610100535422
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
-2638943920 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 2638943921 can be divided by 8 positive divisors.
The sum of these divisors (counting 2638943921) is 1, the average is 0.125.
Base
System
Value
2
Binary
10011101010010110001011010110001
3
Ternary
20210220122020111202
4
Quaternary
2131102301122301
5
Quinary
20401032201141
6
Senary
1113505420545
8
Octal
23522613261
10
Decimal
2638943921
12
Duodecimal
61793a755
16
Hexadecimal
9d4b16b1
20
Vigesimal
214d7jg1
36
Base36
17n5q5t
md5
0dcdb58e0a94dbd7590f3f9eaf1cb881
sha1
a582c840f33b20c92057bdc1300c035e999dc780
sha256
c4f5504ed152b8aa910a0e09a74879d3cabb4c3480b0bee65b9c4358b83b855b
sha512
9a9e9cb4587a8f01f314ccee5cb4704a64ef7b429e5648cb09ebc2b3a96f66119a88aa17e14a2dd4c17eb8fefdf3e48a605e1ce779fce972d4e361c005322256
ripemd-160
b5533817815463e60a118b9693adc0940c7c6fde
Diameter
5277887842
Circumference
16580973670.898
Area
2.1878129836539E+19
Volume
7.698021031331E+28
Surface area
8.7512519346155E+19
Circumference
16580973670.898
Perimeter
10555775684
Area
6964025018182854241
Diagonal
3732030283.4202
Surface area
4.1784150109097E+19
Volume
1.8377671487426E+28
Space diagonal
4570784949.497
Perimeter
7916831763
Area
3.0155112891684E+18
Altitude
2285392474.7485
Surface area
3.0155112891684E+18
Volume
2.1658293551962E+27
Height
1244010094.4734