78162981 (number)

78162981 is an odd 8-digits composite number following 78162980 and preceding 78162982. In scientific notation, it is written as 7.8162981 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 46799424 positive integers (up to 78162981) that are relatively prime to 78162981.

Interesting facts

Basic properties

Name

Name seventy-eight million one hundred sixty-two thousand nine hundred eighty-one

Notation

Scientific notation 7.8162981 × 10^7
Engineering notation 7.8162981 × 10^6

Prime Factorization of 78162981

Prime Factorization 3 × 37 × 13 × 54167

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 78162981
Product of the distinct prime numbers

The prime factorization of 78162981 is 3 × 37 × 13 × 54167. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 5, 48, 25, 937, 519, 663, 6349, 1790, 72372, 420785, 557339, 9864304, 8347465, 12613804, 59310120, 710948697, 229611397, 7807100734, 4880072304

Basic calculations (n = 78162981)

Multiplication

n×y
n×2 156325962
n×3 234488943
n×4 312651924
n×5 390814905

Division

n÷y
n÷2 39081490.5
n÷3 26054327
n÷3 19540745.25
n÷5 15632596.2

Exponentiation

ny
n2 6109451598806361
n3 4.7753294923792E+23
n4 3.7325398838158E+31
n5 2.9174644402043E+39

Nth Root

y√n
2√n 8840.9830335772
3√n 427.56325181534
4√n 94.026501761882
5√n 37.896597826073

Divisors of 78162981

1, 3, 13, 37, 39, 111, 481, 1443, 54167, 162501, 704171, 2004179, 2112513, 6012537, 26054327, 78162981

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 -78162980
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 78162981 can be divided by 16 positive divisors. The sum of these divisors (counting 78162981) is 1, the average is 0.0625.

Base conversion 78162981

Base System Value
2 Binary 100101010001010110000100101
3 Ternary 12110002002110020
4 Quaternary 10222022300211
5 Quinary 130002203411
6 Senary 11431145353
8 Octal 452126045
10 Decimal 78162981
12 Duodecimal 22215259
16 Hexadecimal 4a8ac25
20 Vigesimal 148a791
36 Base36 1ajaxx

Cryptographic Hash Functions

md5 bcbba07e7103ce948a838c6e4940f69e
sha1 b7c0e134ff3f1c86463bf5fb25e4b05485a4dcb5
sha256 adbd628142dc89be972ced290ec7a2c2149dd652e5c8704988bf1fcfb202f038
sha512 7ca7ecc3b0b566264aa8f16e440d69c89942c56c63368955cbca2f369e73e81887cc5d43858e536a1d1fd71654e7fb7d4b56a1ede4257656bafb236ed6fc3b87
ripemd-160 b58aae1f71efcfd3937423ab61c2914a238ae24f

78162981 as geometric shapes

Circle

Radius = n
Diameter 156325962
Circumference 491112493.78456
Area 1.9193408260272E+16

Sphere

Radius = n
Volume 2.0002853402306E+24
Surface area 7.677363304109E+16
Circumference 491112493.78456

Square

Length = n
Perimeter 312651924
Area 6109451598806361
Diagonal 110539147.80571

Cube

Length = n
Surface area 36656709592838166
Volume 4.7753294923792E+23
Space diagonal 135382254.36304

Equilateral Triangle

Length = n
Perimeter 234488943
Area 2.6454701438789E+15
Altitude 67691127.18152

Triangular Pyramid

Length = n
Surface area 2.6454701438789E+15
Volume 5.6277797774358E+22
Height 36846382.601904