638681640 (number)

638681640 is an even 9-digits composite number following 638681639 and preceding 638681641. In scientific notation, it is written as 6.38681640 × 10^8. The sum of its digits is 42. It has a total of 7 prime factors and 64 positive divisors. There are 170161152 positive integers (up to 638681640) that are relatively prime to 638681640.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred eighty-one thousand six hundred forty

Notation

Scientific notation 6.38681640 × 10^8
Engineering notation 6.38681640 × 10^6

Prime Factorization of 638681640

Prime Factorization 2 × 2 × 2 × 3 × 5 × 3089 × 1723

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 159670410
Product of the distinct prime numbers

The prime factorization of 638681640 is 2 × 2 × 2 × 3 × 5 × 3089 × 1723. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 6, 80, 69, 763, 620, 7552, 1518, 66623, 49415, 173131, 157811, 9294032, 2317641, 72664809, 66356859, 78800208, 792801972, 7118310958, 4500362926

Basic calculations (n = 638681640)

Multiplication

n×y
n×2 1277363280
n×3 1916044920
n×4 2554726560
n×5 3193408200

Division

n÷y
n÷2 319340820
n÷3 212893880
n÷3 159670410
n÷5 127736328

Exponentiation

ny
n2 407914237273089600
n3 2.6052733404093E+26
n4 1.6639402497009E+35
n5 1.062728087541E+44

Nth Root

y√n
2√n 25272.151471531
3√n 861.18173579459
4√n 158.97217200356
5√n 57.684201648958

Divisors of 638681640

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1723, 3089, 3446, 5169, 6178, 6892, 8615, 9267, 10338, 12356, 13784, 15445, 17230, 18534, 20676, 24712, 25845, 30890, 34460, 37068, 41352, 46335, 51690, 61780, 68920, 74136, 92670, 103380, 123560, 185340, 206760, 370680, 5322347, 10644694, 15967041, 21289388, 26611735, 31934082, 42578776, 53223470, 63868164, 79835205, 106446940, 127736328, 159670410, 212893880, 319340820, 638681640

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 -638681639
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 638681640 can be divided by 64 positive divisors. The sum of these divisors (counting 638681640) is 1, the average is 0.015625.

Base conversion 638681640

Base System Value
2 Binary 100110000100011000001000101000
3 Ternary 1122111210101111120
4 Quaternary 212010120020220
5 Quinary 2302000303030
6 Senary 143213055240
8 Octal 4604301050
10 Decimal 638681640
12 Duodecimal 159a87520
16 Hexadecimal 26118228
20 Vigesimal 9jbf420
36 Base36 ak95wo

Cryptographic Hash Functions

md5 aa9037959067bb468f21481d4b2e7a63
sha1 68885e0a6c220edc51e0465e6ebc0af1179f838d
sha256 8eb579a8a74aeee5d0c6c6e6006e71c673dcb079063ede7085d7ac25628e7c2f
sha512 ced909c86531b84cd24da1c1cd85400f6b23e797b23265f55370743563dbebac5a12c67bfc2541b9c3ccf4af5cc4378028dc2be5abf7616ed161d8ac89b5778c
ripemd-160 fb80f1d78843661cf704426216aaa5c21bdba2d1

638681640 as geometric shapes

Circle

Radius = n
Diameter 1277363280
Circumference 4012955096.4134
Area 1.2815003711118E+18

Sphere

Radius = n
Volume 1.0912943449097E+27
Surface area 5.1260014844473E+18
Circumference 4012955096.4134

Square

Length = n
Perimeter 2554726560
Area 407914237273089600
Diagonal 903232237.32669

Cube

Length = n
Surface area 2447485423638537600
Volume 2.6052733404093E+26
Space diagonal 1106229050.3414

Equilateral Triangle

Length = n
Perimeter 1916044920
Area 1.7663204602192E+17
Altitude 553114525.17071

Triangular Pyramid

Length = n
Surface area 1.7663204602192E+17
Volume 3.0703440764132E+25
Height 301077412.44223