81372148 (number)

81372148 is an even 8-digits composite number following 81372147 and preceding 81372149. In scientific notation, it is written as 8.1372148 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 48 positive divisors. There are 32947200 positive integers (up to 81372148) that are relatively prime to 81372148.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seventy-two thousand one hundred forty-eight

Notation

Scientific notation 8.1372148 × 10^7
Engineering notation 8.1372148 × 10^6

Prime Factorization of 81372148

Prime Factorization 2 × 2 × 31 × 13 × 143 × 353

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40686074
Product of the distinct prime numbers

The prime factorization of 81372148 is 2 × 2 × 31 × 13 × 143 × 353. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81372148)

Multiplication

n×y
n×2 162744296
n×3 244116444
n×4 325488592
n×5 406860740

Division

n÷y
n÷2 40686074
n÷3 27124049.333333
n÷3 20343037
n÷5 16274429.6

Exponentiation

ny
n2 6621426470133904
n3 5.3879969469885E+23
n4 4.384328849939E+31
n5 3.5676225605791E+39

Nth Root

y√n
2√n 9020.6511960058
3√n 433.33648886591
4√n 94.977108799993
5√n 38.202796588349

Divisors of 81372148

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81372147
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81372148 can be divided by 48 positive divisors. The sum of these divisors (counting 81372148) is 1, the average is 0.020833333333333.

Base conversion 81372148

Base System Value
2 Binary 100110110011010001111110100
3 Ternary 12200010010121021
4 Quaternary 10312122033310
5 Quinary 131312402043
6 Senary 12024030524
8 Octal 466321764
10 Decimal 81372148
12 Duodecimal 23302444
16 Hexadecimal 4d9a3f4
20 Vigesimal 158ba78
36 Base36 1cg35g

Cryptographic Hash Functions

md5 44ae0969a3d2cdc3d1108b4ddcc2cc80
sha1 d120df2cc76fe1a00ec616db2b7cb0cbf7e1c9de
sha256 3223f0e2cba0979a4a4a91e47c2473350a68405e6fea04df6cb62046b49a38d3
sha512 e4111af3b42620e98992b5a2f01f6f9afa2d80cf4c5669eefe7eb5704dc9bbb414bf4e557b91c48ca7c858ab9bc67a484a70e17d51aa455cb233128ec9ccfb8f
ripemd-160 9c2526bd27875a7b5bb156abddc9dacdfe68a3e5

81372148 as geometric shapes

Circle

Radius = n
Diameter 162744296
Circumference 511276284.72724
Area 2.0801824754858E+16

Sphere

Radius = n
Volume 2.2569188834965E+24
Surface area 8.3207299019431E+16
Circumference 511276284.72724

Square

Length = n
Perimeter 325488592
Area 6621426470133904
Diagonal 115077595.30103

Cube

Length = n
Surface area 39728558820803424
Volume 5.3879969469885E+23
Space diagonal 140940694.65701

Equilateral Triangle

Length = n
Perimeter 244116444
Area 2.8671617662133E+15
Altitude 70470347.328507

Triangular Pyramid

Length = n
Surface area 2.8671617662133E+15
Volume 6.3498152970467E+22
Height 38359198.433677