638996780 (number)

638996780 is an even 9-digits composite number following 638996779 and preceding 638996781. In scientific notation, it is written as 6.38996780 × 10^8. The sum of its digits is 56. It has a total of 5 prime factors and 24 positive divisors. There are 255267648 positive integers (up to 638996780) that are relatively prime to 638996780.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-six thousand seven hundred eighty

Notation

Scientific notation 6.38996780 × 10^8
Engineering notation 6.38996780 × 10^6

Prime Factorization of 638996780

Prime Factorization 2 × 2 × 5 × 787 × 40597

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 319498390
Product of the distinct prime numbers

The prime factorization of 638996780 is 2 × 2 × 5 × 787 × 40597. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 20, 21, 491, 818, 1451, 3173, 56099, 50100, 649384, 427146, 346322, 3636937, 17986831, 19331904, 228538557, 272027229, 3474911214, 1107673540

Basic calculations (n = 638996780)

Multiplication

n×y
n×2 1277993560
n×3 1916990340
n×4 2555987120
n×5 3194983900

Division

n÷y
n÷2 319498390
n÷3 212998926.66667
n÷3 159749195
n÷5 127799356

Exponentiation

ny
n2 408316884850368400
n3 2.6091317463902E+26
n4 1.6672267845391E+35
n5 1.0653525468502E+44

Nth Root

y√n
2√n 25278.385628833
3√n 861.32335470158
4√n 158.99177849447
5√n 57.689893064317

Divisors of 638996780

1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 7870, 15740, 40597, 81194, 162388, 202985, 405970, 811940, 31949839, 63899678, 127799356, 159749195, 319498390, 638996780

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638996779
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638996780 can be divided by 24 positive divisors. The sum of these divisors (counting 638996780) is 1, the average is 0.041666666666667.

Base conversion 638996780

Base System Value
2 Binary 100110000101100101000100101100
3 Ternary 1122112101101210102
4 Quaternary 212011211010230
5 Quinary 2302040344110
6 Senary 143223530232
8 Octal 4605450454
10 Decimal 638996780
12 Duodecimal 159bb9978
16 Hexadecimal 2616512c
20 Vigesimal 9jdebj0
36 Base36 akfx2k

Cryptographic Hash Functions

md5 9d8c9c97ac5eb7e22f502a39f71f3a1f
sha1 ed1cda50e76e3773dcde618a9f4b523c513dcfd8
sha256 e7ea6a1fc18abad03ad0012e275d06714c8c11e8d59e0f7b41622660dc1e1a9c
sha512 c04020f82f18ef73b6305a1308241bdc7352ae416e7c4a1c996db10168843354ecb42fea0225aeb2ad04123b05be09d62106c93f09221ed916f793b4e84ad5ef
ripemd-160 eb9a138b47bc9ec3037d928c27a32959c4ff733d

638996780 as geometric shapes

Circle

Radius = n
Diameter 1277993560
Circumference 4014935179.4311
Area 1.2827653257826E+18

Sphere

Radius = n
Volume 1.0929105502276E+27
Surface area 5.1310613031303E+18
Circumference 4014935179.4311

Square

Length = n
Perimeter 2555987120
Area 408316884850368400
Diagonal 903677912.58874

Cube

Length = n
Surface area 2449901309102210400
Volume 2.6091317463902E+26
Space diagonal 1106774888.8329

Equilateral Triangle

Length = n
Perimeter 1916990340
Area 1.7680639753727E+17
Altitude 553387444.41646

Triangular Pyramid

Length = n
Surface area 1.7680639753727E+17
Volume 3.0748912514693E+25
Height 301225970.86291