638691390 (number)

638691390 is an even 9-digits composite number following 638691389 and preceding 638691391. In scientific notation, it is written as 6.38691390 × 10^8. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 170317680 positive integers (up to 638691390) that are relatively prime to 638691390.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred ninety-one thousand three hundred ninety

Notation

Scientific notation 6.38691390 × 10^8
Engineering notation 6.38691390 × 10^6

Prime Factorization of 638691390

Prime Factorization 2 × 3 × 15 × 7096571

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638691390
Product of the distinct prime numbers

The prime factorization of 638691390 is 2 × 3 × 15 × 7096571. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 2, 49, 71, 186, 501, 801, 4019, 1716, 78112, 762362, 251747, 1772539, 847788, 43029342, 75778640, 544730131, 625984339, 7427833014, 2677940269

Basic calculations (n = 638691390)

Multiplication

n×y
n×2 1277382780
n×3 1916074170
n×4 2554765560
n×5 3193456950

Division

n÷y
n÷2 319345695
n÷3 212897130
n÷3 159672847.5
n÷5 127738278

Exponentiation

ny
n2 407926691660132100
n3 2.6053926571451E+26
n4 1.6640418576878E+35
n5 1.0628092071048E+44

Nth Root

y√n
2√n 25272.344370873
3√n 861.18611798788
4√n 158.9727787103
5√n 57.68437776723

Divisors of 638691390

1, 2, 3, 6, 15, 30, 45, 90, 7096571, 14193142, 21289713, 42579426, 106448565, 212897130, 319345695, 638691390

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638691389
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638691390 can be divided by 16 positive divisors. The sum of these divisors (counting 638691390) is 1, the average is 0.0625.

Base conversion 638691390

Base System Value
2 Binary 100110000100011010100000111110
3 Ternary 1122111210212212200
4 Quaternary 212010122200332
5 Quinary 2302001111030
6 Senary 143213212330
8 Octal 4604324076
10 Decimal 638691390
12 Duodecimal 159a910a6
16 Hexadecimal 2611a83e
20 Vigesimal 9jbg89a
36 Base36 ak9dfi

Cryptographic Hash Functions

md5 39e3f2a509d9b12f06c8bc5c91ec92d4
sha1 29451a01eb57413afefd69cd00d15cd6757c7713
sha256 c000ab671fe5302cac0b5665409e70339b799f0e16678850cbeafc2077322b26
sha512 d55fbb8b3ee38c8be21fe275725dd7000e0ae1323288a227eb9ef2dc6f0247bf5d705e0add2166f26db59c9c6906aeaf7c542c2f8f5cbf505668172d393bfc29
ripemd-160 5ab195049300d61823a0fd892bd4399012e508e5

638691390 as geometric shapes

Circle

Radius = n
Diameter 1277382780
Circumference 4013016357.4701
Area 1.2815394977227E+18

Sphere

Radius = n
Volume 1.0913443241872E+27
Surface area 5.1261579908906E+18
Circumference 4013016357.4701

Square

Length = n
Perimeter 2554765560
Area 407926691660132100
Diagonal 903246025.90892

Cube

Length = n
Surface area 2447560149960792600
Volume 2.6053926571451E+26
Space diagonal 1106245937.8368

Equilateral Triangle

Length = n
Perimeter 1916074170
Area 1.7663743892971E+17
Altitude 553122968.91839

Triangular Pyramid

Length = n
Surface area 1.7663743892971E+17
Volume 3.0704846925349E+25
Height 301082008.63631