638888931 (number)

638888931 is an odd 9-digits composite number following 638888930 and preceding 638888932. In scientific notation, it is written as 6.38888931 × 10^8. The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors. There are 420792840 positive integers (up to 638888931) that are relatively prime to 638888931.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million eight hundred eighty-eight thousand nine hundred thirty-one

Notation

Scientific notation 6.38888931 × 10^8
Engineering notation 6.38888931 × 10^6

Prime Factorization of 638888931

Prime Factorization 3 × 9 × 83 × 285091

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638888931
Product of the distinct prime numbers

The prime factorization of 638888931 is 3 × 9 × 83 × 285091. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 61, 93, 920, 57, 8939, 9915, 28360, 50195, 396017, 534183, 209039, 6200280, 86035394, 14984677, 233523431, 220051669, 1037973982, 428497919

Basic calculations (n = 638888931)

Multiplication

n×y
n×2 1277777862
n×3 1916666793
n×4 2555555724
n×5 3194444655

Division

n÷y
n÷2 319444465.5
n÷3 212962977
n÷3 159722232.75
n÷5 127777786.2

Exponentiation

ny
n2 408179066154322761
n3 2.6078108723191E+26
n4 1.6661015004661E+35
n5 1.0644538065703E+44

Nth Root

y√n
2√n 25276.252313189
3√n 861.27489431702
4√n 158.98506946625
5√n 57.687945568631

Divisors of 638888931

1, 3, 9, 27, 83, 249, 747, 2241, 285091, 855273, 2565819, 7697457, 23662553, 70987659, 212962977, 638888931

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 -638888930
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 638888931 can be divided by 16 positive divisors. The sum of these divisors (counting 638888931) is 1, the average is 0.0625.

Base conversion 638888931

Base System Value
2 Binary 100110000101001010101111100011
3 Ternary 1122112011220212000
4 Quaternary 212011022233203
5 Quinary 2302023421211
6 Senary 143221335043
8 Octal 4605125743
10 Decimal 638888931
12 Duodecimal 159b67483
16 Hexadecimal 2614abe3
20 Vigesimal 9jd126b
36 Base36 akdlur

Cryptographic Hash Functions

md5 8bcc78fa3306fdbe0d56ddcf374f36c1
sha1 3c429e4ac22e6d4c2cbe39bbfc39942ccbf30608
sha256 b0895b4b877f077396452fab78a991501995cc70d50dd94b76b41d8a2fc9fb49
sha512 72baff3e41f64ca67366259b874b25498ba9c3126e1924b96e229ef3ec65b2031d96bb142d0036470045a195a5974182431b9261eccc4c52f7bb82a47131bfaf
ripemd-160 616664885b879c174ec9b83ed10f9b76e9424cae

638888931 as geometric shapes

Circle

Radius = n
Diameter 1277777862
Circumference 4014257544.1789
Area 1.2823323555796E+18

Sphere

Radius = n
Volume 1.0923572637906E+27
Surface area 5.1293294223182E+18
Circumference 4014257544.1789

Square

Length = n
Perimeter 2555555724
Area 408179066154322761
Diagonal 903525391.07025

Cube

Length = n
Surface area 2449074396925936566
Volume 2.6078108723191E+26
Space diagonal 1106588088.8854

Equilateral Triangle

Length = n
Perimeter 1916666793
Area 1.7674672029133E+17
Altitude 553294044.44268

Triangular Pyramid

Length = n
Surface area 1.7674672029133E+17
Volume 3.0733345864481E+25
Height 301175130.35675