388645 (number)

388645 is an odd 6-digits composite number following 388644 and preceding 388646. In scientific notation, it is written as 3.88645 × 10^5. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 294480 positive integers (up to 388645) that are relatively prime to 388645.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight thousand six hundred forty-five

Notation

Scientific notation 3.88645 × 10^5
Engineering notation 3.88645 × 10^3

Prime Factorization of 388645

Prime Factorization 19 × 5 × 4091

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 388645
Product of the distinct prime numbers

The prime factorization of 388645 is 19 × 5 × 4091. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 388645)

Multiplication

n×y
n×2 777290
n×3 1165935
n×4 1554580
n×5 1943225

Division

n÷y
n÷2 194322.5
n÷3 129548.33333333
n÷3 97161.25
n÷5 77729

Exponentiation

ny
n2 151044936025
n3 58702859161436125
n4 2.2814572698796E+22
n5 8.8667696065237E+27

Nth Root

y√n
2√n 623.41398765187
3√n 72.976723673058
4√n 24.968259603983
5√n 13.119298602426

Divisors of 388645

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 -388644
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 388645 can be divided by 8 positive divisors. The sum of these divisors (counting 388645) is 1, the average is 0.125.

Base conversion 388645

Base System Value
2 Binary 1011110111000100101
3 Ternary 201202010021
4 Quaternary 1132320211
5 Quinary 44414040
6 Senary 12155141
8 Octal 1367045
10 Decimal 388645
12 Duodecimal 168ab1
16 Hexadecimal 5ee25
20 Vigesimal 28bc5
36 Base36 8bvp

Cryptographic Hash Functions

md5 910c7bbeecf49d35a63c2dff2f70a774
sha1 7e5b027f7be56719b84f08b31e6a27af8e856156
sha256 2502eca8bdcb8f0b645478fa48039168a81467c88b2c6e39000a533e458f14ca
sha512 6c0fb110c8244ebfb01a2f888623c27821cf2747dd3227491c0cf46182be2fa09b238016f659aeea5a4270660e044950e2cb1f7d349bc8f00c6b94b9bddff3b2
ripemd-160 907222835619e542189b0ceb428ace6bb8c8d2e4

388645 as geometric shapes

Circle

Radius = n
Diameter 777290
Circumference 2441928.5537088
Area 474521661378.08

Sphere

Radius = n
Volume 2.4589396144838E+17
Surface area 1898086645512.3
Circumference 2441928.5537088

Square

Length = n
Perimeter 1554580
Area 151044936025
Diagonal 549627.02994849

Cube

Length = n
Surface area 906269616150
Volume 58702859161436125
Space diagonal 673152.88610761

Equilateral Triangle

Length = n
Perimeter 1165935
Area 65404375855.323
Altitude 336576.4430538

Triangular Pyramid

Length = n
Surface area 65404375855.323
Volume 6.9181982980151E+15
Height 183209.00998283