388640686 (number)

388640686 is an even 9-digits composite number following 388640685 and preceding 388640687. In scientific notation, it is written as 3.88640686 × 10^8. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 166560288 positive integers (up to 388640686) that are relatively prime to 388640686.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.88640686 × 10^8
Engineering notation 3.88640686 × 10^6

Prime Factorization of 388640686

Prime Factorization 2 × 7 × 27760049

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 388640686
Product of the distinct prime numbers

The prime factorization of 388640686 is 2 × 7 × 27760049. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 3, 90, 81, 890, 271, 1628, 3367, 56532, 11717, 834823, 764144, 8929408, 8529243, 44717528, 54660848, 278337660, 284063687, 5276659713, 830350745

Basic calculations (n = 388640686)

Multiplication

n×y
n×2 777281372
n×3 1165922058
n×4 1554562744
n×5 1943203430

Division

n÷y
n÷2 194320343
n÷3 129546895.33333
n÷3 97160171.5
n÷5 77728137.2

Exponentiation

ny
n2 151041582814550596
n3 5.8700904359573E+25
n4 2.2813559739125E+34
n5 8.8662775071154E+42

Nth Root

y√n
2√n 19713.971847398
3√n 729.76453655646
4√n 140.40645229974
5√n 52.228752512893

Divisors of 388640686

1, 2, 7, 14, 27760049, 55520098, 194320343, 388640686

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 -388640685
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 388640686 can be divided by 8 positive divisors. The sum of these divisors (counting 388640686) is 1, the average is 0.125.

Base conversion 388640686

Base System Value
2 Binary 10111001010100010111110101110
3 Ternary 1000002021222210111
4 Quaternary 113022202332232
5 Quinary 1243443000221
6 Senary 102321530234
8 Octal 2712427656
10 Decimal 388640686
12 Duodecimal aa1a397a
16 Hexadecimal 172a2fae
20 Vigesimal 61901e6
36 Base36 6fdx2m

Cryptographic Hash Functions

md5 d47d1706ca85cabb8d1981e8496bed11
sha1 a8844c5760c76500f3fb367a7d291e078e5d9ece
sha256 420ed183bab8a394322ac461ebc9642e254300316736b419da4e0fa60900a856
sha512 8f14a22cfb59d9ab61a78a96e4a61e17b61b382d1c5efe48ec0c251a49545e27be16cbc1eda97ea0438ecc539f908fba9a58fd832e97adb8db754d540075c50a
ripemd-160 811f4246e55b599c675b5ce1976fd913ad37e3d1

388640686 as geometric shapes

Circle

Radius = n
Diameter 777281372
Circumference 2441901448.0474
Area 4.7451112695677E+17

Sphere

Radius = n
Volume 2.4588577319348E+26
Surface area 1.8980445078271E+18
Circumference 2441901448.0474

Square

Length = n
Perimeter 1554562744
Area 151041582814550596
Diagonal 549620929.03118

Cube

Length = n
Surface area 906249496887303576
Volume 5.8700904359573E+25
Space diagonal 673145414.04042

Equilateral Triangle

Length = n
Perimeter 1165922058
Area 6.5402923872606E+16
Altitude 336572707.02021

Triangular Pyramid

Length = n
Surface area 6.5402923872606E+16
Volume 6.9179679224061E+24
Height 183206976.34373