1638991808 (number)

1638991808 is an even 10-digits composite number following 1638991807 and preceding 1638991809. In scientific notation, it is written as 1.638991808 × 10^9. The sum of its digits is 53. It has a total of 7 prime factors and 14 positive divisors. There are 819495872 positive integers (up to 1638991808) that are relatively prime to 1638991808.

Interesting facts

Basic properties

Name

Name one billion six hundred thirty-eight million nine hundred ninety-one thousand eight hundred eight

Notation

Scientific notation 1.638991808 × 10^9
Engineering notation 1.638991808 × 10^9

Prime Factorization of 1638991808

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 25609247

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 51218494
Product of the distinct prime numbers

The prime factorization of 1638991808 is 2 × 2 × 2 × 2 × 2 × 2 × 25609247. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 4, 80, 93, 746, 938, 7228, 1288, 57519, 23831, 590767, 908835, 1733202, 9683155, 78832281, 48644251, 342681508, 921686134, 9594125559, 5719268826

Basic calculations (n = 1638991808)

Multiplication

n×y
n×2 3277983616
n×3 4916975424
n×4 6555967232
n×5 8194959040

Division

n÷y
n÷2 819495904
n÷3 546330602.66667
n÷3 409747952
n÷5 327798361.6

Exponentiation

ny
n2 2686294146691108864
n3 4.4028141003051E+27
n4 7.2161762425469E+36
n5 1.1827253746619E+46

Nth Root

y√n
2√n 40484.463785507
3√n 1179.0320051416
4√n 201.20751423718
5√n 69.649075575074

Divisors of 1638991808

1, 2, 4, 8, 16, 32, 64, 25609247, 51218494, 102436988, 204873976, 409747952, 819495904, 1638991808

14 divisors

τ Total Divisors 14
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1638991807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.071428571428571
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 14
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1638991808 can be divided by 14 positive divisors. The sum of these divisors (counting 1638991808) is 1, the average is 0.071428571428571.

Base conversion 1638991808

Base System Value
2 Binary 1100001101100010000011111000000
3 Ternary 11020020001102002022
4 Quaternary 1201230100133000
5 Quinary 11324040214213
6 Senary 430345141012
8 Octal 14154203700
10 Decimal 1638991808
12 Duodecimal 398a8a768
16 Hexadecimal 61b107c0
20 Vigesimal 15c3dja8
36 Base36 r3ta68

Cryptographic Hash Functions

md5 17f2b9430e24103c95755e08b5bef6bd
sha1 4becbc9ead0e7dbf04f67b33f8464e60e387a847
sha256 a52f41bb14f07ffed48a2a965ad1b11e9b7fd6921ce21bd6002b9e59cb0b58be
sha512 3d2b99b13aff2f69e9b5088e9cffb94aa255818dfad73dc0979b73453445f3601db23fd0bafa48693ed41e0e804320460153eae8582583855f6880613c5daa35
ripemd-160 595162f7abbb14e7ce36457343b267d6dcb07586

1638991808 as geometric shapes

Circle

Radius = n
Diameter 3277983616
Circumference 10298089246.613
Area 8.4392419566261E+18

Sphere

Radius = n
Volume 1.8442464576853E+28
Surface area 3.3756967826504E+19
Circumference 10298089246.613

Square

Length = n
Perimeter 6555967232
Area 2686294146691108864
Diagonal 2317884443.492

Cube

Length = n
Surface area 1.6117764880147E+19
Volume 4.4028141003051E+27
Space diagonal 2838817084.6452

Equilateral Triangle

Length = n
Perimeter 4916975424
Area 1.163199486536E+18
Altitude 1419408542.3226

Triangular Pyramid

Length = n
Surface area 1.163199486536E+18
Volume 5.1887661777158E+26
Height 772628147.83067