81478412 (number)

81478412 is an even 8-digits composite number following 81478411 and preceding 81478413. In scientific notation, it is written as 8.1478412 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 40532016 positive integers (up to 81478412) that are relatively prime to 81478412.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred seventy-eight thousand four hundred twelve

Notation

Scientific notation 8.1478412 × 10^7
Engineering notation 8.1478412 × 10^6

Prime Factorization of 81478412

Prime Factorization 2 × 2 × 197 × 103399

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40739206
Product of the distinct prime numbers

The prime factorization of 81478412 is 2 × 2 × 197 × 103399. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 25, 53, 109, 231, 2085, 3342, 66336, 39086, 556334, 275386, 2840993, 1989599, 87823403, 68893600, 54638648, 608459029, 1681899035, 3642892265

Basic calculations (n = 81478412)

Multiplication

n×y
n×2 162956824
n×3 244435236
n×4 325913648
n×5 407392060

Division

n÷y
n÷2 40739206
n÷3 27159470.666667
n÷3 20369603
n÷5 16295682.4

Exponentiation

ny
n2 6638731622041744
n3 5.4091331025815E+23
n4 4.4072757549497E+31
n5 3.590978297594E+39

Nth Root

y√n
2√n 9026.5393147097
3√n 433.52503838631
4√n 95.008101310939
5√n 38.212769197334

Divisors of 81478412

1, 2, 4, 197, 394, 788, 103399, 206798, 413596, 20369603, 40739206, 81478412

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 -81478411
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 81478412 can be divided by 12 positive divisors. The sum of these divisors (counting 81478412) is 1, the average is 0.083333333333333.

Base conversion 81478412

Base System Value
2 Binary 100110110110100001100001100
3 Ternary 12200022112100222
4 Quaternary 10312310030030
5 Quinary 131324302122
6 Senary 12030210512
8 Octal 466641414
10 Decimal 81478412
12 Duodecimal 23353a38
16 Hexadecimal 4db430c
20 Vigesimal 1594g0c
36 Base36 1cid58

Cryptographic Hash Functions

md5 18d18e625241c1fd8e73999ee5643409
sha1 a7c18e334b7c507672eeb23821bd406cde39c57f
sha256 10aed9378484fffedc715490d3d2bbba12161242a6eff50fa4ce8edef61bc1bd
sha512 7c1dac3a50276107fc7044a2db6700dca8c1e0887342bffc8eb4ea12fb11872c6fae1327378ca48ce8560fdcacb3827288bf87dbcd6339001e6583c2f703072e
ripemd-160 1266b37c3a3f819fed1cf1ffea229a7928fc2b08

81478412 as geometric shapes

Circle

Radius = n
Diameter 162956824
Circumference 511943961.13072
Area 2.0856190492961E+16

Sphere

Radius = n
Volume 2.2657723756479E+24
Surface area 8.3424761971842E+16
Circumference 511943961.13072

Square

Length = n
Perimeter 325913648
Area 6638731622041744
Diagonal 115227875.29102

Cube

Length = n
Surface area 39832389732250464
Volume 5.4091331025815E+23
Space diagonal 141124749.30403

Equilateral Triangle

Length = n
Perimeter 244435236
Area 2.8746551167976E+15
Altitude 70562374.652015

Triangular Pyramid

Length = n
Surface area 2.8746551167976E+15
Volume 6.3747244952933E+22
Height 38409291.763674