638540641 is an odd 9-digits composite number following 638540640
and preceding 638540642 . In scientific notation, it is written as 6.38540641 × 10^8.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 635627520 positive integers (up to 638540641) that are relatively prime to 638540641.
638540641 has 8 divisors, whose sum is 641460744
The reverse of 638540641 is 146045836
Previous prime number is 761
Is Prime? no Number parity odd Number length 9 Sum of Digits 37 Digital Root 1
Name
six hundred thirty-eight million five hundred forty thousand six hundred forty-one
Scientific notation
6.38540641 × 10^8
Engineering notation
6.38540641 × 10^6
Prime Factorization
353 × 761 × 2377
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
638540641 Product of the distinct prime numbers
The prime factorization of 638540641 is 353 × 761 × 2377.
Since it has a total of 3 prime factors.
4 , 2 , 83 , 44 , 982 , 80 , 7390 , 7705 , 69347 , 81232 , 208301 , 102391 , 7289293 , 2360271 , 29402072 , 49765891 , 575690302 , 498478283 , 6457485117 , 1448984195
n×2
1277081282
n×3
1915621923
n×4
2554162564
n×5
3192703205
n÷2
319270320.5
n÷3
212846880.33333
n÷3
159635160.25
n÷5
127708128.2
n2
407734150208690881
n3
2.6035482563185E+26
n4
1.662471372464E+35
n5
1.0615555358173E+44
2 √n25269.361705433
3 √n861.1183580006
4 √n158.96339737635
5 √n57.681654485375
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
-638540640 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 638540641 can be divided by 8 positive divisors.
The sum of these divisors (counting 638540641) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110000011110101101101100001
3
Ternary
1122111112020002101
4
Quaternary
212003311231201
5
Quinary
2301431300031
6
Senary
143210050401
8
Octal
4603655541
10
Decimal
638540641
12
Duodecimal
159a19a01
16
Hexadecimal
260f5b61
20
Vigesimal
9jahbc1
36
Base36
ak6541
md5
4a4ec066b945ba9022c49bf4b0f33c95
sha1
d31827152b967e1264ccda00e9742943c0fbc32a
sha256
e1f0c85146c82d67cf2fe915baeb2c51b35d8636686852a6c12af2d36ff87e38
sha512
e71d8f4a0095752802bcaa165fe2cc158be42a07ea1f22b6003a66e54ba5d46cab80d496fa1b492cb3df22bf6a4987804f1503aa21fc0c58dba7fa1f8b7ecedd
ripemd-160
3d7b8d54f080670a4650d2e74dc8a8042e0f66f6
Diameter
1277081282
Circumference
4012069173.5682
Area
1.2809346109133E+18
Volume
1.0905717433756E+27
Surface area
5.1237384436532E+18
Circumference
4012069173.5682
Perimeter
2554162564
Area
407734150208690881
Diagonal
903032834.62861
Surface area
2446404901252145286
Volume
2.6035482563185E+26
Space diagonal
1105984832.9096
Perimeter
1915621923
Area
1.7655406603559E+17
Altitude
552992416.4548
Surface area
1.7655406603559E+17
Volume
3.0683110453153E+25
Height
301010944.8762