638681639 (number)

638681639 is an odd 9-digits prime number following 638681638 and preceding 638681640. In scientific notation, it is written as 6.38681639 × 10^8. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 638681638 positive integers (up to 638681639) that are relatively prime to 638681639.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38681639 × 10^8
Engineering notation 6.38681639 × 10^6

Prime Factorization of 638681639

Prime Factorization 638681639

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 638681639
Product of the distinct prime numbers

The prime factorization of 638681639 is 638681639. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 4, 59, 34, 670, 464, 4137, 7685, 71389, 78574, 8411, 289627, 922350, 9249592, 81795931, 89270432, 966107613, 675745435, 184320282, 2858981044

Basic calculations (n = 638681639)

Multiplication

n×y
n×2 1277363278
n×3 1916044917
n×4 2554726556
n×5 3193408195

Division

n÷y
n÷2 319340819.5
n÷3 212893879.66667
n÷3 159670409.75
n÷5 127736327.8

Exponentiation

ny
n2 407914235995726321
n3 2.6052733281718E+26
n4 1.6639402392798E+35
n5 1.0627280792213E+44

Nth Root

y√n
2√n 25272.151451746
3√n 861.18173534513
4√n 158.97217194134
5√n 57.684201630895

Divisors of 638681639

1, 638681639

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 638681640
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 319340820
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 25272.151471531
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999968685
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638681639 can be divided by 2 positive divisors. The sum of these divisors (counting 638681639) is 638681640, the average is 319340820.

Base conversion 638681639

Base System Value
2 Binary 100110000100011000001000100111
3 Ternary 1122111210101111112
4 Quaternary 212010120020213
5 Quinary 2302000303024
6 Senary 143213055235
8 Octal 4604301047
10 Decimal 638681639
12 Duodecimal 159a8751b
16 Hexadecimal 26118227
20 Vigesimal 9jbf41j
36 Base36 ak95wn

Cryptographic Hash Functions

md5 c76d94cfd91505331d52a029791f5a8c
sha1 d82d5fd717cef34b39d4ea6868968e73e8544920
sha256 5685a3eed04566dd49f66cbfe75e9c888c91944db93f4fc164f056e6a7d8d902
sha512 6419c70434bb84b52d3df739ee9f89d45c3a4986ffe8cde5b7d2ba6e5807560b2956861892326c6e726c9d5148b7d98d4ef3383fc1646ac4193d5687b8838370
ripemd-160 437cb35521260e6ac67b03c96b5ef9f70f4ddc04

638681639 as geometric shapes

Circle

Radius = n
Diameter 1277363278
Circumference 4012955090.1302
Area 1.2815003670989E+18

Sphere

Radius = n
Volume 1.0912943397837E+27
Surface area 5.1260014683955E+18
Circumference 4012955090.1302

Square

Length = n
Perimeter 2554726556
Area 407914235995726321
Diagonal 903232235.91248

Cube

Length = n
Surface area 2447485415974357926
Volume 2.6052733281718E+26
Space diagonal 1106229048.6094

Equilateral Triangle

Length = n
Perimeter 1916044917
Area 1.7663204546881E+17
Altitude 553114524.30468

Triangular Pyramid

Length = n
Surface area 1.7663204546881E+17
Volume 3.0703440619912E+25
Height 301077411.97083