638856988 (number)

638856988 is an even 9-digits composite number following 638856987 and preceding 638856989. In scientific notation, it is written as 6.38856988 × 10^8. The sum of its digits is 61. It has a total of 6 prime factors and 48 positive divisors. There are 235802880 positive integers (up to 638856988) that are relatively prime to 638856988.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million eight hundred fifty-six thousand nine hundred eighty-eight

Notation

Scientific notation 6.38856988 × 10^8
Engineering notation 6.38856988 × 10^6

Prime Factorization of 638856988

Prime Factorization 2 × 2 × 7 × 11 × 19 × 109169

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 319428494
Product of the distinct prime numbers

The prime factorization of 638856988 is 2 × 2 × 7 × 11 × 19 × 109169. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 6, 3, 27, 529, 23, 464, 5205, 12594, 29740, 475560, 195684, 7902668, 3277387, 33645686, 25302469, 553878728, 437094180, 9331445426, 4553419945

Basic calculations (n = 638856988)

Multiplication

n×y
n×2 1277713976
n×3 1916570964
n×4 2555427952
n×5 3194284940

Division

n÷y
n÷2 319428494
n÷3 212952329.33333
n÷3 159714247
n÷5 127771397.6

Exponentiation

ny
n2 408138251116432144
n3 2.6074197379583E+26
n4 1.6657683202438E+35
n5 1.0641877317768E+44

Nth Root

y√n
2√n 25275.620427598
3√n 861.26054014624
4√n 158.98308220562
5√n 57.687368703761

Divisors of 638856988

1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 209, 266, 308, 418, 532, 836, 1463, 2926, 5852, 109169, 218338, 436676, 764183, 1200859, 1528366, 2074211, 2401718, 3056732, 4148422, 4803436, 8296844, 8406013, 14519477, 16812026, 22816321, 29038954, 33624052, 45632642, 58077908, 91265284, 159714247, 319428494, 638856988

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638856987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638856988 can be divided by 48 positive divisors. The sum of these divisors (counting 638856988) is 1, the average is 0.020833333333333.

Base conversion 638856988

Base System Value
2 Binary 100110000101000010111100011100
3 Ternary 1122112010022000221
4 Quaternary 212011002330130
5 Quinary 2302021410423
6 Senary 143220531124
8 Octal 4605027434
10 Decimal 638856988
12 Duodecimal 159b50aa4
16 Hexadecimal 26142f1c
20 Vigesimal 9jch298
36 Base36 akcx7g

Cryptographic Hash Functions

md5 d50bea8de7d0cb34ed4d0772657d8b4e
sha1 ca9250ead9d0e59043cef593b109cf0fc87fe2b6
sha256 fa818fa7e0c105e87712f2504f6dfdcf9709cea87087f7b83231b417b9aeb50d
sha512 ea62a89e80a1a03f21af305ce789cdbd7b6a19657345b4dd2a48d1e7d28072e15bc61346e3a48332fa03beb83ac3c48987af3e14b4fcec5acdecae9337212295
ripemd-160 d00025a05de64a9d11295e6e3a270cfa41ec9b20

638856988 as geometric shapes

Circle

Radius = n
Diameter 1277713976
Circumference 4014056840.3906
Area 1.2822041313564E+18

Sphere

Radius = n
Volume 1.0921934258126E+27
Surface area 5.1288165254255E+18
Circumference 4014056840.3906

Square

Length = n
Perimeter 2555427952
Area 408138251116432144
Diagonal 903480216.84643

Cube

Length = n
Surface area 2448829506698592864
Volume 2.6074197379583E+26
Space diagonal 1106532761.9864

Equilateral Triangle

Length = n
Perimeter 1916570964
Area 1.7672904686149E+17
Altitude 553266380.99321

Triangular Pyramid

Length = n
Surface area 1.7672904686149E+17
Volume 3.0728736301833E+25
Height 301160072.28214