638590985 (number)

638590985 is an odd 9-digits composite number following 638590984 and preceding 638590986. In scientific notation, it is written as 6.38590985 × 10^8. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 510872784 positive integers (up to 638590985) that are relatively prime to 638590985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38590985 × 10^8
Engineering notation 6.38590985 × 10^6

Prime Factorization of 638590985

Prime Factorization 5 × 127718197

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638590985
Product of the distinct prime numbers

The prime factorization of 638590985 is 5 × 127718197. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 1, 60, 39, 263, 690, 885, 487, 15630, 95683, 891101, 236570, 2051410, 1235234, 56250084, 27479084, 581244468, 855040355, 8101744975, 9373559095

Basic calculations (n = 638590985)

Multiplication

n×y
n×2 1277181970
n×3 1915772955
n×4 2554363940
n×5 3192954925

Division

n÷y
n÷2 319295492.5
n÷3 212863661.66667
n÷3 159647746.25
n÷5 127718197

Exponentiation

ny
n2 407798446123270225
n3 2.6041641139133E+26
n4 1.6629957266055E+35
n5 1.0619740791038E+44

Nth Root

y√n
2√n 25270.357832844
3√n 861.14098825076
4√n 158.96653054289
5√n 57.682564007322

Divisors of 638590985

1, 5, 127718197, 638590985

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638590984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638590985 can be divided by 4 positive divisors. The sum of these divisors (counting 638590985) is 1, the average is 0.25.

Base conversion 638590985

Base System Value
2 Binary 100110000100000010000000001001
3 Ternary 1122111121210010222
4 Quaternary 212010002000021
5 Quinary 2301434402420
6 Senary 143211115425
8 Octal 4604020011
10 Decimal 638590985
12 Duodecimal 159a42b75
16 Hexadecimal 26102009
20 Vigesimal 9jb3h95
36 Base36 ak77yh

Cryptographic Hash Functions

md5 c05e79b29ede76f1fc33db16d4e5f199
sha1 338c6cf7196a52b06d7b2c01c5a2333bc5e2947b
sha256 819613f5b592318538ce1a953edfcd9a54ce2b0f52462bb71d86f2476d9004c2
sha512 f79e943be1993c8f3493958b1a3ad33d2e52295512f0d9980b7de7358970aa55effa2174ef6b5fa3e09bf45719b49969c9fd3cec66684d0ce1563cef14ce752f
ripemd-160 92c65a3c711d8603e9a61873976fbcaa2d3ad980

638590985 as geometric shapes

Circle

Radius = n
Diameter 1277181970
Circumference 4012385494.2493
Area 1.2811366024862E+18

Sphere

Radius = n
Volume 1.0908297132016E+27
Surface area 5.1245464099448E+18
Circumference 4012385494.2493

Square

Length = n
Perimeter 2554363940
Area 407798446123270225
Diagonal 903104031.79619

Cube

Length = n
Surface area 2446790676739621350
Volume 2.6041641139133E+26
Space diagonal 1106072031.2755

Equilateral Triangle

Length = n
Perimeter 1915772955
Area 1.7658190698329E+17
Altitude 553036015.63773

Triangular Pyramid

Length = n
Surface area 1.7658190698329E+17
Volume 3.0690368404512E+25
Height 301034677.2654