388640687 (number)

388640687 is an odd 9-digits composite number following 388640686 and preceding 388640688. In scientific notation, it is written as 3.88640687 × 10^8. The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors. There are 355480272 positive integers (up to 388640687) that are relatively prime to 388640687.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million six hundred forty thousand six hundred eighty-seven

Notation

Scientific notation 3.88640687 × 10^8
Engineering notation 3.88640687 × 10^6

Prime Factorization of 388640687

Prime Factorization 19 × 19 × 29 × 37123

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20454773
Product of the distinct prime numbers

The prime factorization of 388640687 is 19 × 19 × 29 × 37123. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 5, 94, 36, 298, 582, 2056, 6583, 45332, 72078, 617898, 689474, 6145058, 6479171, 52761590, 63963499, 927495428, 386336443, 183925834, 8778004719

Basic calculations (n = 388640687)

Multiplication

n×y
n×2 777281374
n×3 1165922061
n×4 1554562748
n×5 1943203435

Division

n÷y
n÷2 194320343.5
n÷3 129546895.66667
n÷3 97160171.75
n÷5 77728137.4

Exponentiation

ny
n2 151041583591831969
n3 5.8700904812698E+25
n4 2.2813559973928E+34
n5 8.8662776211832E+42

Nth Root

y√n
2√n 19713.971872761
3√n 729.76453718237
4√n 140.40645239005
5√n 52.228752539771

Divisors of 388640687

1, 19, 29, 361, 551, 10469, 37123, 705337, 1076567, 13401403, 20454773, 388640687

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -388640686
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 388640687 can be divided by 12 positive divisors. The sum of these divisors (counting 388640687) is 1, the average is 0.083333333333333.

Base conversion 388640687

Base System Value
2 Binary 10111001010100010111110101111
3 Ternary 1000002021222210112
4 Quaternary 113022202332233
5 Quinary 1243443000222
6 Senary 102321530235
8 Octal 2712427657
10 Decimal 388640687
12 Duodecimal aa1a397b
16 Hexadecimal 172a2faf
20 Vigesimal 61901e7
36 Base36 6fdx2n

Cryptographic Hash Functions

md5 1221d9a7678a40d6497a62733cfa6794
sha1 c2a7bda266e3ab0bb4a8caf7094de381c4d50c04
sha256 c384c9d54671c4e48eb562078d808781f66fd86eee8c1837f839ad060a8cb5c7
sha512 a0702d43a4fc17681d95f33e4709e692047f24a25da86d197d298cb788084e5d0844dbbbef1f930d820b2d89818a33b706e9d6e0a5cbfd353011ff44d36dde4f
ripemd-160 6a52feb990cd69ffd644b62360de04ac4a526cbe

388640687 as geometric shapes

Circle

Radius = n
Diameter 777281374
Circumference 2441901454.3306
Area 4.7451112939867E+17

Sphere

Radius = n
Volume 2.4588577509153E+26
Surface area 1.8980445175947E+18
Circumference 2441901454.3306

Square

Length = n
Perimeter 1554562748
Area 151041583591831969
Diagonal 549620930.4454

Cube

Length = n
Surface area 906249501550991814
Volume 5.8700904812698E+25
Space diagonal 673145415.77247

Equilateral Triangle

Length = n
Perimeter 1165922061
Area 6.5402924209179E+16
Altitude 336572707.88624

Triangular Pyramid

Length = n
Surface area 6.5402924209179E+16
Volume 6.9179679758074E+24
Height 183206976.81513