638961386 (number)

638961386 is an even 9-digits composite number following 638961385 and preceding 638961387. In scientific notation, it is written as 6.38961386 × 10^8. The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors. There are 269198880 positive integers (up to 638961386) that are relatively prime to 638961386.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38961386 × 10^8
Engineering notation 6.38961386 × 10^6

Prime Factorization of 638961386

Prime Factorization 2 × 413 × 773561

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638961386
Product of the distinct prime numbers

The prime factorization of 638961386 is 2 × 413 × 773561. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638961386)

Multiplication

n×y
n×2 1277922772
n×3 1916884158
n×4 2555845544
n×5 3194806930

Division

n÷y
n÷2 319480693
n÷3 212987128.66667
n÷3 159740346.5
n÷5 127792277.2

Exponentiation

ny
n2 408271652799040996
n3 2.6086982113699E+26
n4 1.6668574247926E+35
n5 1.0650575304099E+44

Nth Root

y√n
2√n 25277.685534874
3√n 861.30745152197
4√n 158.98957681205
5√n 57.689253962093

Divisors of 638961386

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 -638961385
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 638961386 can be divided by 8 positive divisors. The sum of these divisors (counting 638961386) is 1, the average is 0.125.

Base conversion 638961386

Base System Value
2 Binary 100110000101011100011011101010
3 Ternary 1122112022121020112
4 Quaternary 212011130123222
5 Quinary 2302033231021
6 Senary 143223054322
8 Octal 4605343352
10 Decimal 638961386
12 Duodecimal 159ba13a2
16 Hexadecimal 2615c6ea
20 Vigesimal 9jda396
36 Base36 akf5re

Cryptographic Hash Functions

md5 8740e7ea8bdf3166f894b5202dc115c5
sha1 98fce2726d2c745f3b6631a71cc9dde261fab6f9
sha256 6830bcc84e8b679b938929a253b1ce41a996aef42f96703dd6b63628f9e22757
sha512 af2131ae4dc77e8039cea5a2cc1df8f489efc16ffa093995e82aa29282ed94a9b4dc2736d2dc5fea6c5480975075a0ce09099af3328db83150ed94c72e85f579
ripemd-160 d22a0e1169ff64dc0d1f25609f44855f1f2916ce

638961386 as geometric shapes

Circle

Radius = n
Diameter 1277922772
Circumference 4014712792.3703
Area 1.2826232251024E+18

Sphere

Radius = n
Volume 1.092728951503E+27
Surface area 5.1304929004097E+18
Circumference 4014712792.3703

Square

Length = n
Perimeter 2555845544
Area 408271652799040996
Diagonal 903627857.91391

Cube

Length = n
Surface area 2449629916794245976
Volume 2.6086982113699E+26
Space diagonal 1106713584.6266

Equilateral Triangle

Length = n
Perimeter 1916884158
Area 1.7678681148451E+17
Altitude 553356792.31331

Triangular Pyramid

Length = n
Surface area 1.7678681148451E+17
Volume 3.0743803255481E+25
Height 301209285.9713