638680 is an even 6-digits composite number following 638679
and preceding 638681 . In scientific notation, it is written as 6.38680 × 10^5.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 218880 positive integers (up to 638680) that are relatively prime to 638680.
638680 has 16 divisors, whose sum is 1232280
The reverse of 638680 is 086836
Previous prime number is 35
Is Prime? no
Number parity even
Number length 6
Sum of Digits 31
Digital Root 4
Name
six hundred thirty-eight thousand six hundred eighty
Scientific notation
6.38680 × 10^5
Engineering notation
6.38680 × 10^3
Prime Factorization
2 × 2 × 2 × 35 × 2281
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
159670
Product of the distinct prime numbers
The prime factorization of 638680 is 2 × 2 × 2 × 35 × 2281.
Since it has a total of 5 prime factors.
7 , 1 , 3 , 12 , 696 , 34 , 5800 , 7477 , 42756 , 58377 , 955997 , 83852 , 1331840 , 6502084 , 37984085 , 79049711 , 935192709 , 644288237 , 4659662943 , 2287661565
n×2
1277360
n×3
1916040
n×4
2554720
n×5
3193400
n÷2
319340
n÷3
212893.33333333
n÷3
159670
n÷5
127736
n2
407912142400
n3
260525327108032000
n4
1.6639231591736E+23
n5
1.062714443301E+29
2 √n
799.17457417012
3 √n
86.118099868282
4 √n
28.269675876637
5 √n
14.489608902184
1 , 2 , 4 , 8 , 35 , 70 , 140 , 280 , 2281 , 4562 , 9124 , 18248 , 79835 , 159670 , 319340 , 638680
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
-638679
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 638680 can be divided by 16 positive divisors.
The sum of these divisors (counting 638680) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10011011111011011000
3
Ternary
1012110002211
4
Quaternary
2123323120
5
Quinary
130414210
6
Senary
21404504
8
Octal
2337330
10
Decimal
638680
12
Duodecimal
269734
16
Hexadecimal
9bed8
20
Vigesimal
3jge0
36
Base36
dot4
md5
acabb2fa04c4477122b29254419070cd
sha1
20ca22c52cbb1e25a53412c6f94b6914f46182f4
sha256
bf4da7eb4240d27cf516ce489886deec34b697dfe2b33ba1cf89f34b0773152e
sha512
7b0a0ddb20c59b91657f7c91b1e603c7c7d38e465d5e14ae7d38190f9405381e4916bb58e0d50ea97c9792148c95d41364c93ec751ea9f98ee3a9a9b727a9516
ripemd-160
62034903b495057c772cb5ee443e4dd4613ff29d
Diameter
1277360
Circumference
4012944.7919895
Area
1281493789873.9
Volume
1.0912859382889E+18
Surface area
5125975159495.7
Circumference
4012944.7919895
Perimeter
2554720
Area
407912142400
Diagonal
903229.91801645
Surface area
2447472854400
Volume
260525327108032000
Space diagonal
1106226.2097781
Perimeter
1916040
Area
176631138915.27
Altitude
553113.10488905
Surface area
176631138915.27
Volume
3.0703204244822E+16
Height
301076.63933882