638642794 (number)

638642794 is an even 9-digits composite number following 638642793 and preceding 638642795. In scientific notation, it is written as 6.38642794 × 10^8. The sum of its digits is 49. It has a total of 6 prime factors and 64 positive divisors. There are 285405120 positive integers (up to 638642794) that are relatively prime to 638642794.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred forty-two thousand seven hundred ninety-four

Notation

Scientific notation 6.38642794 × 10^8
Engineering notation 6.38642794 × 10^6

Prime Factorization of 638642794

Prime Factorization 2 × 61 × 23 × 67 × 79 × 43

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 638642794
Product of the distinct prime numbers

The prime factorization of 638642794 is 2 × 61 × 23 × 67 × 79 × 43. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 9, 76, 54, 569, 768, 4547, 8028, 38871, 23537, 404489, 260173, 86727, 4529727, 39322526, 2068870, 94690955, 326283269, 2424516717, 2936154003

Basic calculations (n = 638642794)

Multiplication

n×y
n×2 1277285588
n×3 1915928382
n×4 2554571176
n×5 3193213970

Division

n÷y
n÷2 319321397
n÷3 212880931.33333
n÷3 159660698.5
n÷5 127728558.8

Exponentiation

ny
n2 407864618328126436
n3 2.6047979942282E+26
n4 1.6635354688395E+35
n5 1.0624049397377E+44

Nth Root

y√n
2√n 25271.382906363
3√n 861.16427579476
4√n 158.96975469052
5√n 57.683499936282

Divisors of 638642794

1, 2, 23, 43, 46, 61, 67, 79, 86, 122, 134, 158, 989, 1403, 1541, 1817, 1978, 2623, 2806, 2881, 3082, 3397, 3634, 4087, 4819, 5246, 5293, 5762, 6794, 8174, 9638, 10586, 60329, 66263, 78131, 94001, 110837, 120658, 121739, 132526, 156262, 175741, 188002, 207217, 221674, 227599, 243478, 322873, 351482, 414434, 455198, 645746, 4042043, 4765991, 5234777, 7426079, 8084086, 9531982, 10469554, 13883539, 14852158, 27767078, 319321397, 638642794

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638642793
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638642794 can be divided by 64 positive divisors. The sum of these divisors (counting 638642794) is 1, the average is 0.015625.

Base conversion 638642794

Base System Value
2 Binary 100110000100001110101001101010
3 Ternary 1122111201102012211
4 Quaternary 212010032221222
5 Quinary 2301443032134
6 Senary 143212155334
8 Octal 4604165152
10 Decimal 638642794
12 Duodecimal 159a68b4a
16 Hexadecimal 2610ea6a
20 Vigesimal 9jba6je
36 Base36 ak8bxm

Cryptographic Hash Functions

md5 4c893b3583381ee12b4cbbf2261a4a39
sha1 696307419d843f12b53a8a16ef9e3cf1c182e3d5
sha256 2fb0bf96b984fa3c86086605b655282cd4958dc6def894461bc58f3ab3d5ee36
sha512 1b75b015cdc4d23ad2d0c0716ec4405fac42aa75b3fd3b705274fbe87ae3399d4ac9f6b82e33d420c7ed98d4d78db522f5f3943715253c4f98fb60698bfa14ac
ripemd-160 dbdfbdf581e4ca618429c35bda6884c9b7878b28

638642794 as geometric shapes

Circle

Radius = n
Diameter 1277285588
Circumference 4012711019.7969
Area 1.2813444885988E+18

Sphere

Radius = n
Volume 1.091095232367E+27
Surface area 5.1253779543954E+18
Circumference 4012711019.7969

Square

Length = n
Perimeter 2554571176
Area 407864618328126436
Diagonal 903177300.78665

Cube

Length = n
Surface area 2447187709968758616
Volume 2.6047979942282E+26
Space diagonal 1106161767.0957

Equilateral Triangle

Length = n
Perimeter 1915928382
Area 1.766105603885E+17
Altitude 553080883.54787

Triangular Pyramid

Length = n
Surface area 1.766105603885E+17
Volume 3.0697838755664E+25
Height 301059100.26222