81474940 (number)

81474940 is an even 8-digits composite number following 81474939 and preceding 81474941. In scientific notation, it is written as 8.1474940 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 32589968 positive integers (up to 81474940) that are relatively prime to 81474940.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred seventy-four thousand nine hundred forty

Notation

Scientific notation 8.1474940 × 10^7
Engineering notation 8.1474940 × 10^6

Prime Factorization of 81474940

Prime Factorization 2 × 2 × 5 × 4073747

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40737470
Product of the distinct prime numbers

The prime factorization of 81474940 is 2 × 2 × 5 × 4073747. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 10, 10, 43, 698, 860, 9763, 2045, 87886, 47193, 997026, 539941, 6471164, 8959180, 23915660, 38725087, 211048254, 841024085, 7435461362, 5427969288

Basic calculations (n = 81474940)

Multiplication

n×y
n×2 162949880
n×3 244424820
n×4 325899760
n×5 407374700

Division

n÷y
n÷2 40737470
n÷3 27158313.333333
n÷3 20368735
n÷5 16294988

Exponentiation

ny
n2 6638165848003600
n3 5.4084416417614E+23
n4 4.4065245825601E+31
n5 3.5902132597261E+39

Nth Root

y√n
2√n 9026.3469908928
3√n 433.51888043487
4√n 95.007089161245
5√n 38.212443523347

Divisors of 81474940

1, 2, 4, 5, 10, 20, 4073747, 8147494, 16294988, 20368735, 40737470, 81474940

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81474939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81474940 can be divided by 12 positive divisors. The sum of these divisors (counting 81474940) is 1, the average is 0.083333333333333.

Base conversion 81474940

Base System Value
2 Binary 100110110110011010101111100
3 Ternary 12200022100121101
4 Quaternary 10312303111330
5 Quinary 131324144230
6 Senary 12030142444
8 Octal 466632574
10 Decimal 81474940
12 Duodecimal 23351a24
16 Hexadecimal 4db357c
20 Vigesimal 1594770
36 Base36 1ciags

Cryptographic Hash Functions

md5 29ba9b3c28f9f2876c91433ba0861883
sha1 2e2f54a141dd0bc4da10f9d6fd9e78bdc3c7d5aa
sha256 c12f9490bb549c9f9a8136e5c9619046c5086ed298ff81443b2377a3979041f6
sha512 ec52ff3c5fc35475f97b35675e6a0e44754374ce02c163fa9ad3f3fbfcbf1738057762e034058e4ec8c5af0c7d6aa9ebe48e2a772ef3042cd61fa2d70b27e0d3
ripemd-160 b2cf49a062cabc9bc195b2249073d5538282e019

81474940 as geometric shapes

Circle

Radius = n
Diameter 162949880
Circumference 511922145.91134
Area 2.0854413061399E+16

Sphere

Radius = n
Volume 2.2654827372169E+24
Surface area 8.3417652245595E+16
Circumference 511922145.91134

Square

Length = n
Perimeter 325899760
Area 6638165848003600
Diagonal 115222965.14153

Cube

Length = n
Surface area 39828995088021600
Volume 5.4084416417614E+23
Space diagonal 141118735.62363

Equilateral Triangle

Length = n
Perimeter 244424820
Area 2.8744101294527E+15
Altitude 70559367.811813

Triangular Pyramid

Length = n
Surface area 2.8744101294527E+15
Volume 6.373909600902E+22
Height 38407655.047178