209439861 (number)

209439861 is an odd 9-digits composite number following 209439860 and preceding 209439862. In scientific notation, it is written as 2.09439861 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 139590960 positive integers (up to 209439861) that are relatively prime to 209439861.

Interesting facts

Basic properties

Name

Name two hundred nine million four hundred thirty-nine thousand eight hundred sixty-one

Notation

Scientific notation 2.09439861 × 10^8
Engineering notation 2.09439861 × 10^6

Prime Factorization of 209439861

Prime Factorization 3 × 5827 × 11981

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 209439861
Product of the distinct prime numbers

The prime factorization of 209439861 is 3 × 5827 × 11981. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 10, 81, 33, 627, 320, 6776, 5067, 25061, 44822, 508280, 637527, 5782433, 6404191, 20937375, 59479005, 155173091, 492084137, 3011958485, 8970422877

Basic calculations (n = 209439861)

Multiplication

n×y
n×2 418879722
n×3 628319583
n×4 837759444
n×5 1047199305

Division

n÷y
n÷2 104719930.5
n÷3 69813287
n÷3 52359965.25
n÷5 41887972.2

Exponentiation

ny
n2 43865055375699321
n3 9.1870911006438E+24
n4 1.9241430831132E+33
n5 4.0299225987133E+41

Nth Root

y√n
2√n 14472.037209737
3√n 593.8632449407
4√n 120.2997805889
5√n 46.154268072803

Divisors of 209439861

1, 3, 5827, 11981, 17481, 35943, 69813287, 209439861

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -209439860
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 209439861 can be divided by 8 positive divisors. The sum of these divisors (counting 209439861) is 1, the average is 0.125.

Base conversion 209439861

Base System Value
2 Binary 1100011110111100110001110101
3 Ternary 112121002122110220
4 Quaternary 30132330301311
5 Quinary 412104033421
6 Senary 32441004553
8 Octal 1436746165
10 Decimal 209439861
12 Duodecimal 5a183759
16 Hexadecimal c7bcc75
20 Vigesimal 358jjd1
36 Base36 3gp0tx

Cryptographic Hash Functions

md5 319bb2d5d5e5721186c1e139bbe8995b
sha1 f4b6ecc96bd4c87040bd8ce8dc593981c2b9e955
sha256 f11f70e19fe53576a39cfc27aa474890c7aa88d7f47a22e542975e63f788223f
sha512 e9ca3649c9ced81739c5340c458bdd163c08b9aa671c609f3a033aedc5004808c764824d61ccb8a4708afca57060922894058d1a3f926fe410a337ebba641916
ripemd-160 a2cdbdb03e46a4e0b54197a0485ff5f1b9af341c

209439861 as geometric shapes

Circle

Radius = n
Diameter 418879722
Circumference 1315949457.3729
Area 1.3780613571761E+17

Sphere

Radius = n
Volume 3.8482797212857E+25
Surface area 5.5122454287043E+17
Circumference 1315949457.3729

Square

Length = n
Perimeter 837759444
Area 43865055375699321
Diagonal 296192691.92774

Cube

Length = n
Surface area 263190332254195926
Volume 9.1870911006438E+24
Space diagonal 362760480.38216

Equilateral Triangle

Length = n
Perimeter 628319583
Area 1.8994126146883E+16
Altitude 181380240.19108

Triangular Pyramid

Length = n
Surface area 1.8994126146883E+16
Volume 1.0827090694406E+24
Height 98730897.309245