638993868 is an even 9-digits composite number following 638993867
and preceding 638993869 . In scientific notation, it is written as 6.38993868 × 10^8.
The sum of its digits is 60. It has a total of 5 prime factors and 24 positive divisors.
There are 212910480 positive integers (up to 638993868) that are relatively prime to 638993868.
638993868 has 24 divisors, whose sum is 1491598080
The reverse of 638993868 is 868399836
Previous prime number is 2791
Is Prime? no Number parity even Number length 9 Sum of Digits 60 Digital Root 6
Name
six hundred thirty-eight million nine hundred ninety-three thousand eight hundred sixty-eight
Scientific notation
6.38993868 × 10^8
Engineering notation
6.38993868 × 10^6
Prime Factorization
2 × 2 × 3 × 2791 × 19079
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
319496934 Product of the distinct prime numbers
The prime factorization of 638993868 is 2 × 2 × 3 × 2791 × 19079.
Since it has a total of 5 prime factors.
7 , 5 , 55 , 89 , 493 , 360 , 9395 , 7429 , 3187 , 81076 , 187125 , 923247 , 7725303 , 6681028 , 3755037 , 4035968 , 424232457 , 899522344 , 8112510844 , 4114816226
n×2
1277987736
n×3
1916981604
n×4
2555975472
n×5
3194969340
n÷2
319496934
n÷3
212997956
n÷3
159748467
n÷5
127798773.6
n2
408313163341601424
n3
2.6090960759897E+26
n4
1.6671963935803E+35
n5
1.0653282722495E+44
2 √n25278.328030153
3 √n861.32204630823
4 √n158.99159735707
5 √n57.689840483997
1 , 2 , 3 , 4 , 6 , 12 , 2791 , 5582 , 8373 , 11164 , 16746 , 19079 , 33492 , 38158 , 57237 , 76316 , 114474 , 228948 , 53249489 , 106498978 , 159748467 , 212997956 , 319496934 , 638993868
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-638993867 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638993868 can be divided by 24 positive divisors.
The sum of these divisors (counting 638993868) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110000101100100010111001100
3
Ternary
1122112101020210120
4
Quaternary
212011210113030
5
Quinary
2302040300433
6
Senary
143223504540
8
Octal
4605442714
10
Decimal
638993868
12
Duodecimal
159bb8150
16
Hexadecimal
261645cc
20
Vigesimal
9jde4d8
36
Base36
akfuto
md5
69c685b8c0615cc71c3ca465d13f3615
sha1
6587cbd05c9cb16881b9df7fb34e8f6f6521bf97
sha256
1d5ae2a7d3868212a47c8f6189e5457f048b205748ba7d4fdea7cb7ef2a88604
sha512
137147f86e05125ed17a50042c291b74103df4e848f2eaa2974a9d9fc70c472ee5b5125474e062b484ccff92d65dca55671dfe57f28bb7bbf1678f8a2fab7397
ripemd-160
77024673a3d11057643ee1735140c88779e324c0
Diameter
1277987736
Circumference
4014916882.7955
Area
1.282753634318E+18
Volume
1.0928956086452E+27
Surface area
5.1310145372719E+18
Circumference
4014916882.7955
Perimeter
2555975472
Area
408313163341601424
Diagonal
903673794.39884
Surface area
2449878980049608544
Volume
2.6090960759897E+26
Space diagonal
1106769845.101
Perimeter
1916981604
Area
1.7680478607671E+17
Altitude
553384922.55048
Surface area
1.7680478607671E+17
Volume
3.0748492134992E+25
Height
301224598.13295