638994916 (number)

638994916 is an even 9-digits composite number following 638994915 and preceding 638994917. In scientific notation, it is written as 6.38994916 × 10^8. The sum of its digits is 55. It has a total of 5 prime factors and 24 positive divisors. There are 272322912 positive integers (up to 638994916) that are relatively prime to 638994916.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-four thousand nine hundred sixteen

Notation

Scientific notation 6.38994916 × 10^8
Engineering notation 6.38994916 × 10^6

Prime Factorization of 638994916

Prime Factorization 2 × 2 × 7 × 179 × 127493

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 319497458
Product of the distinct prime numbers

The prime factorization of 638994916 is 2 × 2 × 7 × 179 × 127493. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 7, 30, 63, 968, 589, 7948, 2816, 68272, 56998, 598327, 838891, 6369135, 8365273, 33840542, 28186740, 370833665, 304809798, 9046473521, 7753429696

Basic calculations (n = 638994916)

Multiplication

n×y
n×2 1277989832
n×3 1916984748
n×4 2555979664
n×5 3194974580

Division

n÷y
n÷2 319497458
n÷3 212998305.33333
n÷3 159748729
n÷5 127798983.2

Exponentiation

ny
n2 408314502673847056
n3 2.6091089133766E+26
n4 1.6672073309379E+35
n5 1.0653370083873E+44

Nth Root

y√n
2√n 25278.348759363
3√n 861.32251718652
4√n 158.9916625467
5√n 57.689859407156

Divisors of 638994916

1, 2, 4, 7, 14, 28, 179, 358, 716, 1253, 2506, 5012, 127493, 254986, 509972, 892451, 1784902, 3569804, 22821247, 45642494, 91284988, 159748729, 319497458, 638994916

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 -638994915
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 638994916 can be divided by 24 positive divisors. The sum of these divisors (counting 638994916) is 1, the average is 0.041666666666667.

Base conversion 638994916

Base System Value
2 Binary 100110000101100100100111100100
3 Ternary 1122112101022020101
4 Quaternary 212011210213210
5 Quinary 2302040314131
6 Senary 143223513444
8 Octal 4605444744
10 Decimal 638994916
12 Duodecimal 159bb8884
16 Hexadecimal 261649e4
20 Vigesimal 9jde75g
36 Base36 akfvms

Cryptographic Hash Functions

md5 db150185b8a51988e2beda13b1f75806
sha1 557021b1d947e0a2fa5ea25578f2654947fe3e20
sha256 5a2980bf0c992f8f8bcd2e76ecb36696db02c5892713ac4377c97e9aebaf65ca
sha512 61b22e91264714ccca5dfa9a37e4d5fdcbd234963788427e250dd8b463ab79c42fdabc0a552373bb502e8bf27e35af25b45f52c1457705a560d951e8cd34d6e8
ripemd-160 427d8316da140313eb14697b00303b8628f52a7c

638994916 as geometric shapes

Circle

Radius = n
Diameter 1277989832
Circumference 4014923467.5737
Area 1.2827578419543E+18

Sphere

Radius = n
Volume 1.0929009859573E+27
Surface area 5.1310313678173E+18
Circumference 4014923467.5737

Square

Length = n
Perimeter 2555979664
Area 408314502673847056
Diagonal 903675276.49466

Cube

Length = n
Surface area 2449887016043082336
Volume 2.6091089133766E+26
Space diagonal 1106771660.2902

Equilateral Triangle

Length = n
Perimeter 1916984748
Area 1.7680536602458E+17
Altitude 553385830.1451

Triangular Pyramid

Length = n
Surface area 1.7680536602458E+17
Volume 3.0748643425047E+25
Height 301225092.16489