642912687 (number)

642912687 is an odd 9-digits composite number following 642912686 and preceding 642912688. In scientific notation, it is written as 6.42912687 × 10^8. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 413828352 positive integers (up to 642912687) that are relatively prime to 642912687.

Interesting facts

Basic properties

Name

Name six hundred forty-two million nine hundred twelve thousand six hundred eighty-seven

Notation

Scientific notation 6.42912687 × 10^8
Engineering notation 6.42912687 × 10^6

Prime Factorization of 642912687

Prime Factorization 3 × 9 × 29 × 821089

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 642912687
Product of the distinct prime numbers

The prime factorization of 642912687 is 3 × 9 × 29 × 821089. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 63, 11, 219, 118, 1787, 5603, 33023, 67771, 601830, 24357, 8745921, 8782715, 47244081, 83371524, 870315210, 36815021, 2530116635, 105243158

Basic calculations (n = 642912687)

Multiplication

n×y
n×2 1285825374
n×3 1928738061
n×4 2571650748
n×5 3214563435

Division

n÷y
n÷2 321456343.5
n÷3 214304229
n÷3 160728171.75
n÷5 128582537.4

Exponentiation

ny
n2 413336723105559969
n3 2.6573942328757E+26
n4 1.7084724666764E+35
n5 1.0983986242165E+44

Nth Root

y√n
2√n 25355.722963465
3√n 863.07922982267
4√n 159.23480449784
5√n 57.760427541242

Divisors of 642912687

1, 3, 9, 27, 29, 87, 261, 783, 821089, 2463267, 7389801, 22169403, 23811581, 71434743, 214304229, 642912687

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -642912686
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 642912687 can be divided by 16 positive divisors. The sum of these divisors (counting 642912687) is 1, the average is 0.0625.

Base conversion 642912687

Base System Value
2 Binary 100110010100100001000110101111
3 Ternary 1122210202100102000
4 Quaternary 212110201012233
5 Quinary 2304041201222
6 Senary 143443503343
8 Octal 4624410657
10 Decimal 642912687
12 Duodecimal 15b387b53
16 Hexadecimal 265211af
20 Vigesimal a0i41e7
36 Base36 amrulr

Cryptographic Hash Functions

md5 b60c9adeb7e6c476bfe89f9a40e2b46b
sha1 d87710559e69495a73268a4fccb5d7594679a4ed
sha256 9bad69a434546a0746ad3415d2203d94a4bbd0d48919969557b157aa8b05521a
sha512 a7839f5f7ace5590646c98e0c2acba1e3857e2e6e55fecb6fac6823781b3e3bed94c0567c55b84d14ebcb72752c053c18f0cecd650205b4a26867f6d0d39c56c
ripemd-160 05fff176d52f19394ef7ab13a30e5096e1069b5f

642912687 as geometric shapes

Circle

Radius = n
Diameter 1285825374
Circumference 4039539548.7577
Area 1.2985356127673E+18

Sphere

Radius = n
Volume 1.1131266932926E+27
Surface area 5.1941424510692E+18
Circumference 4039539548.7577

Square

Length = n
Perimeter 2571650748
Area 413336723105559969
Diagonal 909215841.37713

Cube

Length = n
Surface area 2480020338633359814
Volume 2.6573942328757E+26
Space diagonal 1113557438.7146

Equilateral Triangle

Length = n
Perimeter 1928738061
Area 1.7898005126321E+17
Altitude 556778719.35731

Triangular Pyramid

Length = n
Surface area 1.7898005126321E+17
Volume 3.1317691372541E+25
Height 303071947.12571