638963842 is an even 9-digits composite number following 638963841
and preceding 638963843 . In scientific notation, it is written as 6.38963842 × 10^8.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 290214000 positive integers (up to 638963842) that are relatively prime to 638963842.
638963842 has 16 divisors, whose sum is 1046384064
The reverse of 638963842 is 248369836
Previous prime number is 1381
Is Prime? no
Number parity even
Number length 9
Sum of Digits 49
Digital Root 4
Name
six hundred thirty-eight million nine hundred sixty-three thousand eight hundred forty-two
Scientific notation
6.38963842 × 10^8
Engineering notation
6.38963842 × 10^6
Prime Factorization
2 × 11 × 1381 × 21031
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
638963842
Product of the distinct prime numbers
The prime factorization of 638963842 is 2 × 11 × 1381 × 21031.
Since it has a total of 4 prime factors.
10 , 5 , 90 , 62 , 993 , 701 , 337 , 8429 , 75892 , 23265 , 933889 , 240065 , 1415827 , 8029656 , 41078517 , 38721002 , 552843410 , 883342398 , 4073458482 , 7845830781
n×2
1277927684
n×3
1916891526
n×4
2555855368
n×5
3194819210
n÷2
319481921
n÷3
212987947.33333
n÷3
159740960.5
n÷5
127792768.4
n2
408274791383400964
n3
2.6087282929409E+26
n4
1.6668830527916E+35
n5
1.0650779995764E+44
2 √n
25277.734115225
3 √n
861.30855506721
4 √n
158.98972959039
5 √n
57.689298310497
1 , 2 , 11 , 22 , 1381 , 2762 , 15191 , 21031 , 30382 , 42062 , 231341 , 462682 , 29043811 , 58087622 , 319481921 , 638963842
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
-638963841
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 638963842 can be divided by 16 positive divisors.
The sum of these divisors (counting 638963842) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000101011101000010000010
3
Ternary
1122112022201121111
4
Quaternary
212011131002002
5
Quinary
2302033320332
6
Senary
143223113534
8
Octal
4605350202
10
Decimal
638963842
12
Duodecimal
159ba28aa
16
Hexadecimal
2615d082
20
Vigesimal
9jda9c2
36
Base36
akf7nm
md5
4c287d2a94ad997d997c61b586dd4b8b
sha1
9dadb16d0d4551cda3f7df7b784ed0443b850dfe
sha256
46aec9a9f80c1e9abd73eea1093758ee75a722fff30626728b9b08bc5bb28f0c
sha512
33cd01aa20140edefd6fd78a4e54888ef29e7af3ee0e4733beeb6e40329c196c501ed96eb6ddf3b40ec95a8b8b161307ebed7dc5dda2c991eaa6b58e076561b1
ripemd-160
6ad854093feab29c1088a8b10ac2033aa37d078b
Diameter
1277927684
Circumference
4014728223.8734
Area
1.282633085256E+18
Volume
1.092741552042E+27
Surface area
5.130532341024E+18
Circumference
4014728223.8734
Perimeter
2555855368
Area
408274791383400964
Diagonal
903631331.22242
Surface area
2449648748300405784
Volume
2.6087282929409E+26
Space diagonal
1106717838.5434
Perimeter
1916891526
Area
1.7678817053141E+17
Altitude
553358919.27171
Surface area
1.7678817053141E+17
Volume
3.0744157770195E+25
Height
301210443.74081