71809905 (number)

71809905 is an odd 8-digits composite number following 71809904 and preceding 71809906. In scientific notation, it is written as 7.1809905 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 38165568 positive integers (up to 71809905) that are relatively prime to 71809905.

Interesting facts

Basic properties

Name

Name seventy-one million eight hundred nine thousand nine hundred five

Notation

Scientific notation 7.1809905 × 10^7
Engineering notation 7.1809905 × 10^6

Prime Factorization of 71809905

Prime Factorization 5 × 3 × 293 × 16339

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 71809905
Product of the distinct prime numbers

The prime factorization of 71809905 is 5 × 3 × 293 × 16339. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 46, 51, 738, 676, 8871, 2572, 58557, 96785, 645987, 668800, 5322062, 6160975, 47476451, 25097006, 933281294, 102271677, 1825191802, 7688190989

Basic calculations (n = 71809905)

Multiplication

n×y
n×2 143619810
n×3 215429715
n×4 287239620
n×5 359049525

Division

n÷y
n÷2 35904952.5
n÷3 23936635
n÷3 17952476.25
n÷5 14361981

Exponentiation

ny
n2 5156662456109025
n3 3.7029944109026E+23
n4 2.6591167686244E+31
n5 1.9095092253883E+39

Nth Root

y√n
2√n 8474.0725156208
3√n 415.65031827979
4√n 92.054725656105
5√n 37.259486942892

Divisors of 71809905

1, 3, 5, 15, 293, 879, 1465, 4395, 16339, 49017, 81695, 245085, 4787327, 14361981, 23936635, 71809905

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 -71809904
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 71809905 can be divided by 16 positive divisors. The sum of these divisors (counting 71809905) is 1, the average is 0.0625.

Base conversion 71809905

Base System Value
2 Binary 100010001111011101101110001
3 Ternary 12000010022200010
4 Quaternary 10101323231301
5 Quinary 121340404110
6 Senary 11043045133
8 Octal 421735561
10 Decimal 71809905
12 Duodecimal 200707a9
16 Hexadecimal 447bb71
20 Vigesimal 128g4f5
36 Base36 16r4vl

Cryptographic Hash Functions

md5 a968539d988876f4e8cd313b110fb2a8
sha1 e4ea585e0fb9364e2dad1bdd8429a4d359afb1f4
sha256 2b9dd50159a3f9d6f42fb56707c3678dfe486bb57da0394a810a3ad01f915bbe
sha512 3f944b6aad860d0853e9c372c4227ec5eaca08f2cb13b34e3c1d19995ebfd6686aaafee73c332a2826644a0d59cf9202a3e4026cee3a01d060257a4aeab86f9c
ripemd-160 5a5d64b3e36e21aa67efd9c4ffb64a14cad8c7d0

71809905 as geometric shapes

Circle

Radius = n
Diameter 143619810
Circumference 451194940.00596
Area 1.6200132889154E+16

Sphere

Radius = n
Volume 1.5511066716767E+24
Surface area 6.4800531556618E+16
Circumference 451194940.00596

Square

Length = n
Perimeter 287239620
Area 5156662456109025
Diagonal 101554541.56372

Cube

Length = n
Surface area 30939974736654150
Volume 3.7029944109026E+23
Space diagonal 124378403.94669

Equilateral Triangle

Length = n
Perimeter 215429715
Area 2.2329003428659E+15
Altitude 62189201.973347

Triangular Pyramid

Length = n
Surface area 2.2329003428659E+15
Volume 4.3640207644085E+22
Height 33851513.854575