638866494 (number)

638866494 is an even 9-digits composite number following 638866493 and preceding 638866495. In scientific notation, it is written as 6.38866494 × 10^8. The sum of its digits is 54. It has a total of 6 prime factors and 64 positive divisors. There are 167090688 positive integers (up to 638866494) that are relatively prime to 638866494.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million eight hundred sixty-six thousand four hundred ninety-four

Notation

Scientific notation 6.38866494 × 10^8
Engineering notation 6.38866494 × 10^6

Prime Factorization of 638866494

Prime Factorization 2 × 21 × 9 × 17 × 37 × 2687

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 638866494
Product of the distinct prime numbers

The prime factorization of 638866494 is 2 × 21 × 9 × 17 × 37 × 2687. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 10, 42, 61, 748, 941, 1842, 9626, 23491, 5564, 807593, 248717, 5903024, 3549522, 71750385, 50000945, 346448507, 621757106, 8814085394, 6778579691

Basic calculations (n = 638866494)

Multiplication

n×y
n×2 1277732988
n×3 1916599482
n×4 2555465976
n×5 3194332470

Division

n÷y
n÷2 319433247
n÷3 212955498
n÷3 159716623.5
n÷5 127773298.8

Exponentiation

ny
n2 408150397155852036
n3 2.6075361325567E+26
n4 1.6658674669848E+35
n5 1.0642669081012E+44

Nth Root

y√n
2√n 25275.808473717
3√n 861.26481189106
4√n 158.98367360744
5√n 57.687540376882

Divisors of 638866494

1, 2, 9, 17, 18, 21, 34, 37, 42, 74, 153, 189, 306, 333, 357, 378, 629, 666, 714, 777, 1258, 1554, 2687, 3213, 5374, 5661, 6426, 6993, 11322, 13209, 13986, 24183, 26418, 45679, 48366, 56427, 91358, 99419, 112854, 118881, 198838, 237762, 411111, 507843, 822222, 894771, 959259, 1015686, 1690123, 1789542, 1918518, 2087799, 3380246, 4175598, 8633331, 15211107, 17266662, 18790191, 30422214, 35492583, 37580382, 70985166, 319433247, 638866494

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 -638866493
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 638866494 can be divided by 64 positive divisors. The sum of these divisors (counting 638866494) is 1, the average is 0.015625.

Base conversion 638866494

Base System Value
2 Binary 100110000101000101010000111110
3 Ternary 1122112010210002000
4 Quaternary 212011011100332
5 Quinary 2302022211434
6 Senary 143221043130
8 Octal 4605052076
10 Decimal 638866494
12 Duodecimal 159b564a6
16 Hexadecimal 2614543e
20 Vigesimal 9jci64e
36 Base36 akd4ji

Cryptographic Hash Functions

md5 4b9509c05394183721c85b01ef9a755a
sha1 205767b20eb7dd9b890614cae94d891576fc49ca
sha256 4adb130b6b935ff25b6bbf059d9aea53c471f7b3dacf3af6735b3992dcfc49ad
sha512 e18ccec734b235ebd4655906a494bf2bbed98c34ddc676950cc375477570f0a0b48f7e1c22c3ac69185c98275df26628d3e2e160897d7ebc482b05ed41308384
ripemd-160 fde981e940cd96162f471a17c2fa158cf013df06

638866494 as geometric shapes

Circle

Radius = n
Diameter 1277732988
Circumference 4014116568.3501
Area 1.2822422892646E+18

Sphere

Radius = n
Volume 1.092242181068E+27
Surface area 5.1289691570583E+18
Circumference 4014116568.3501

Square

Length = n
Perimeter 2555465976
Area 408150397155852036
Diagonal 903493660.36055

Cube

Length = n
Surface area 2448902382935112216
Volume 2.6075361325567E+26
Space diagonal 1106549226.8614

Equilateral Triangle

Length = n
Perimeter 1916599482
Area 1.7673430625084E+17
Altitude 553274613.4307

Triangular Pyramid

Length = n
Surface area 1.7673430625084E+17
Volume 3.0730108025329E+25
Height 301164553.45352