638521666 (number)

638521666 is an even 9-digits composite number following 638521665 and preceding 638521667. In scientific notation, it is written as 6.38521666 × 10^8. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 300340224 positive integers (up to 638521666) that are relatively prime to 638521666.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million five hundred twenty-one thousand six hundred sixty-six

Notation

Scientific notation 6.38521666 × 10^8
Engineering notation 6.38521666 × 10^6

Prime Factorization of 638521666

Prime Factorization 2 × 17 × 5113 × 3673

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638521666
Product of the distinct prime numbers

The prime factorization of 638521666 is 2 × 17 × 5113 × 3673. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 70, 49, 508, 968, 5413, 4263, 74256, 56007, 685388, 243928, 9243489, 5313618, 87021771, 44177813, 575667063, 682553114, 7986486721, 4357237523

Basic calculations (n = 638521666)

Multiplication

n×y
n×2 1277043332
n×3 1915564998
n×4 2554086664
n×5 3192608330

Division

n÷y
n÷2 319260833
n÷3 212840555.33333
n÷3 159630416.5
n÷5 127704333.2

Exponentiation

ny
n2 407709917951415556
n3 2.6033161605506E+26
n4 1.6622737719595E+35
n5 1.0613978182197E+44

Nth Root

y√n
2√n 25268.986247968
3√n 861.10982819495
4√n 158.96221641625
5√n 57.681311665409

Divisors of 638521666

1, 2, 17, 34, 3673, 5113, 7346, 10226, 62441, 86921, 124882, 173842, 18780049, 37560098, 319260833, 638521666

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 -638521665
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 638521666 can be divided by 16 positive divisors. The sum of these divisors (counting 638521666) is 1, the average is 0.0625.

Base conversion 638521666

Base System Value
2 Binary 100110000011110001000101000010
3 Ternary 1122111111021001121
4 Quaternary 212003301011002
5 Quinary 2301430143131
6 Senary 143205422454
8 Octal 4603610502
10 Decimal 638521666
12 Duodecimal 159a0aa2a
16 Hexadecimal 260f1142
20 Vigesimal 9jaf436
36 Base36 ak5qgy

Cryptographic Hash Functions

md5 9d6c8a058f44229cba9947c06eeba3fe
sha1 30b891e340960265669e0b02900a6dc09904f994
sha256 23fd84136802d907116a2d40b4d073a55646266756b31d824acce8f5a8602abb
sha512 9c375e25832088fb8e201fbb3b26af55caf1d28887a17379d6f4a161b005d80c2e4cc5eb447609223dee6335c61a517b0d703fc393b4752ae8764b1af62e44d9
ripemd-160 6dded68528a1dc677a46cb6f30e4ebdd5f4b83d6

638521666 as geometric shapes

Circle

Radius = n
Diameter 1277043332
Circumference 4011949950.127
Area 1.2808584830319E+18

Sphere

Radius = n
Volume 1.0904745233277E+27
Surface area 5.1234339321275E+18
Circumference 4011949950.127

Square

Length = n
Perimeter 2554086664
Area 407709917951415556
Diagonal 903005999.92626

Cube

Length = n
Surface area 2446259507708493336
Volume 2.6033161605506E+26
Space diagonal 1105951967.2455

Equilateral Triangle

Length = n
Perimeter 1915564998
Area 1.765435731604E+17
Altitude 552975983.62276

Triangular Pyramid

Length = n
Surface area 1.765435731604E+17
Volume 3.0680375178298E+25
Height 301001999.97542