638961389 (number)

638961389 is an odd 9-digits composite number following 638961388 and preceding 638961390. In scientific notation, it is written as 6.38961389 × 10^8. The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors. There are 580694400 positive integers (up to 638961389) that are relatively prime to 638961389.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38961389 × 10^8
Engineering notation 6.38961389 × 10^6

Prime Factorization of 638961389

Prime Factorization 11 × 13729 × 4231

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638961389
Product of the distinct prime numbers

The prime factorization of 638961389 is 11 × 13729 × 4231. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638961389)

Multiplication

n×y
n×2 1277922778
n×3 1916884167
n×4 2555845556
n×5 3194806945

Division

n÷y
n÷2 319480694.5
n÷3 212987129.66667
n÷3 159740347.25
n÷5 127792277.8

Exponentiation

ny
n2 408271656632809321
n3 2.6086982481143E+26
n4 1.666857456097E+35
n5 1.0650575554127E+44

Nth Root

y√n
2√n 25277.685594215
3√n 861.30745286995
4√n 158.98957699867
5√n 57.689254016265

Divisors of 638961389

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638961388
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638961389 can be divided by 8 positive divisors. The sum of these divisors (counting 638961389) is 1, the average is 0.125.

Base conversion 638961389

Base System Value
2 Binary 100110000101011100011011101101
3 Ternary 1122112022121020122
4 Quaternary 212011130123231
5 Quinary 2302033231024
6 Senary 143223054325
8 Octal 4605343355
10 Decimal 638961389
12 Duodecimal 159ba13a5
16 Hexadecimal 2615c6ed
20 Vigesimal 9jda399
36 Base36 akf5rh

Cryptographic Hash Functions

md5 ee40092276e7d4430739a1635e7691e5
sha1 586c96bac327c325df2149acdf0f691f7959d39b
sha256 e3d800c0b36ec14aa0f7d946506b9566934717f197bd5e2f3711633b438a1da1
sha512 e38461a5cf8e58297ac78c910a25d5e3f0e65a6458c2f3efa1f0191e4ddf5e501dd79b700910d80f387f638c19f43cc42384bcdc0490c073801cede346c6264e
ripemd-160 000a44d1938221f18d2dcd71dba850a94c46c295

638961389 as geometric shapes

Circle

Radius = n
Diameter 1277922778
Circumference 4014712811.2199
Area 1.2826232371466E+18

Sphere

Radius = n
Volume 1.0927289668945E+27
Surface area 5.1304929485863E+18
Circumference 4014712811.2199

Square

Length = n
Perimeter 2555845556
Area 408271656632809321
Diagonal 903627862.15655

Cube

Length = n
Surface area 2449629939796855926
Volume 2.6086982481143E+26
Space diagonal 1106713589.8228

Equilateral Triangle

Length = n
Perimeter 1916884167
Area 1.7678681314459E+17
Altitude 553356794.91139

Triangular Pyramid

Length = n
Surface area 1.7678681314459E+17
Volume 3.0743803688518E+25
Height 301209287.38552