639698731 (number)

639698731 is an odd 9-digits composite number following 639698730 and preceding 639698732. In scientific notation, it is written as 6.39698731 × 10^8. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 548313192 positive integers (up to 639698731) that are relatively prime to 639698731.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.39698731 × 10^8
Engineering notation 6.39698731 × 10^6

Prime Factorization of 639698731

Prime Factorization 7 × 91385533

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 639698731
Product of the distinct prime numbers

The prime factorization of 639698731 is 7 × 91385533. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 8, 60, 686, 708, 2461, 2795, 59721, 798, 129751, 416907, 8283919, 1258634, 183679, 69410354, 103310629, 813941201, 4781472888, 4731878932

Basic calculations (n = 639698731)

Multiplication

n×y
n×2 1279397462
n×3 1919096193
n×4 2558794924
n×5 3198493655

Division

n÷y
n÷2 319849365.5
n÷3 213232910.33333
n÷3 159924682.75
n÷5 127939746.2

Exponentiation

ny
n2 409214466443010361
n3 2.6177397489044E+26
n4 1.6745647954624E+35
n5 1.0712169746346E+44

Nth Root

y√n
2√n 25292.266229027
3√n 861.63863304263
4√n 159.03542444697
5√n 57.702562203527

Divisors of 639698731

1, 7, 91385533, 639698731

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -639698730
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 639698731 can be divided by 4 positive divisors. The sum of these divisors (counting 639698731) is 1, the average is 0.25.

Base conversion 639698731

Base System Value
2 Binary 100110001000010000011100101011
3 Ternary 1122120201001200121
4 Quaternary 212020100130223
5 Quinary 2302230324411
6 Senary 143250544111
8 Octal 4610203453
10 Decimal 639698731
12 Duodecimal 15a298037
16 Hexadecimal 2621072b
20 Vigesimal 9ji26gb
36 Base36 akuyp7

Cryptographic Hash Functions

md5 23fdaec17cb886470f157b3bc6b82d45
sha1 6e5b5c876489f83a3a3129d809db29e7e9174321
sha256 8ee057025280a68e970e1c7e4d42ec6b566f759c21340f81507eddc219f2b048
sha512 c8abfbc32e693f9a070f2a136ecac649c92708f59460ed8817bdfecbe938e3e9b3d8df154f0a9bf30ada5b1fc53bc6f3775de17b33f4598fc6c7e179072b7390
ripemd-160 d761a027e84d2a4b4d343bec7dc40185e559dbc9

639698731 as geometric shapes

Circle

Radius = n
Diameter 1279397462
Circumference 4019345667.6406
Area 1.28558516152E+18

Sphere

Radius = n
Volume 1.0965162618891E+27
Surface area 5.1423406460801E+18
Circumference 4019345667.6406

Square

Length = n
Perimeter 2558794924
Area 409214466443010361
Diagonal 904670621.21306

Cube

Length = n
Surface area 2455286798658062166
Volume 2.6177397489044E+26
Space diagonal 1107990703.6293

Equilateral Triangle

Length = n
Perimeter 1919096193
Area 1.7719506176787E+17
Altitude 553995351.81467

Triangular Pyramid

Length = n
Surface area 1.7719506176787E+17
Volume 3.0850358797197E+25
Height 301556873.73769