638897780 is an even 9-digits composite number following 638897779
and preceding 638897781 . In scientific notation, it is written as 6.38897780 × 10^8.
The sum of its digits is 56. It has a total of 4 prime factors and 12 positive divisors.
There are 255559104 positive integers (up to 638897780) that are relatively prime to 638897780.
638897780 has 12 divisors, whose sum is 1341685380
The reverse of 638897780 is 087798836
Previous prime number is 5
Is Prime? no Number parity even Number length 9 Sum of Digits 56 Digital Root 2
Name
six hundred thirty-eight million eight hundred ninety-seven thousand seven hundred eighty
Scientific notation
6.38897780 × 10^8
Engineering notation
6.38897780 × 10^6
Prime Factorization
2 × 2 × 5 × 31944889
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319448890 Product of the distinct prime numbers
The prime factorization of 638897780 is 2 × 2 × 5 × 31944889.
Since it has a total of 4 prime factors.
5 , 6 , 12 , 88 , 25 , 733 , 8604 , 8072 , 74512 , 9643 , 599750 , 86969 , 721457 , 762035 , 51313926 , 73664752 , 794975500 , 659845409 , 5670634945 , 3309104573
n×2
1277795560
n×3
1916693340
n×4
2555591120
n×5
3194488900
n÷2
319448890
n÷3
212965926.66667
n÷3
159724445
n÷5
127779556
n2
408190373288928400
n3
2.6079192331167E+26
n4
1.6661938084575E+35
n5
1.0645275252733E+44
2 √n25276.427358312
3 √n861.27887069225
4 √n158.98561997335
5 √n57.688105370367
1 , 2 , 4 , 5 , 10 , 20 , 31944889 , 63889778 , 127779556 , 159724445 , 319448890 , 638897780
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-638897779 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638897780 can be divided by 12 positive divisors.
The sum of these divisors (counting 638897780) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000101001100111001110100
3
Ternary
1122112012100222202
4
Quaternary
212011030321310
5
Quinary
2302024212110
6
Senary
143221444032
8
Octal
4605147164
10
Decimal
638897780
12
Duodecimal
159b70618
16
Hexadecimal
2614ce74
20
Vigesimal
9jd2490
36
Base36
akdsok
md5
4f6596433150d9e1fd21236b09bfc9d1
sha1
3a5ef4a49c32d399e24bcf861577cc01118b2931
sha256
4d62f9dc6f1227b80ef3a616591ae05c7d9958e0b33d6bfd0f6253e52ff47c7b
sha512
9793483488d5efcf9f9a32bc10d9f710c1bdb10c23459842646d5eb98955fa3faf86bae290f6afe80b7f356565af41d716065c302258e191d0f4c612edbd7796
ripemd-160
bdbf922e6d83b8f6ee5633aaaf80c9b493523358
Diameter
1277795560
Circumference
4014313144.0857
Area
1.2823678779906E+18
Volume
1.0924026538553E+27
Surface area
5.1294715119623E+18
Circumference
4014313144.0857
Perimeter
2555591120
Area
408190373288928400
Diagonal
903537905.44606
Surface area
2449142239733570400
Volume
2.6079192331167E+26
Space diagonal
1106603415.803
Perimeter
1916693340
Area
1.7675161642423E+17
Altitude
553301707.90148
Surface area
1.7675161642423E+17
Volume
3.0734622908727E+25
Height
301179301.81535