81293492 (number)

81293492 is an even 8-digits composite number following 81293491 and preceding 81293493. In scientific notation, it is written as 8.1293492 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors. There are 34759872 positive integers (up to 81293492) that are relatively prime to 81293492.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-three thousand four hundred ninety-two

Notation

Scientific notation 8.1293492 × 10^7
Engineering notation 8.1293492 × 10^6

Prime Factorization of 81293492

Prime Factorization 2 × 2 × 7 × 467 × 6217

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40646746
Product of the distinct prime numbers

The prime factorization of 81293492 is 2 × 2 × 7 × 467 × 6217. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 86, 53, 986, 724, 7649, 7776, 17687, 98145, 136496, 721660, 8320367, 3113918, 92468409, 21737101, 566337690, 956395549, 4102691032, 211471861

Basic calculations (n = 81293492)

Multiplication

n×y
n×2 162586984
n×3 243880476
n×4 325173968
n×5 406467460

Division

n÷y
n÷2 40646746
n÷3 27097830.666667
n÷3 20323373
n÷5 16258698.4

Exponentiation

ny
n2 6608631841554064
n3 5.3723875974232E+23
n4 4.3674014817202E+31
n5 3.5504131741501E+39

Nth Root

y√n
2√n 9016.290367995
3√n 433.19681985191
4√n 94.954148766629
5√n 38.195408208546

Divisors of 81293492

1, 2, 4, 7, 14, 28, 467, 934, 1868, 3269, 6217, 6538, 12434, 13076, 24868, 43519, 87038, 174076, 2903339, 5806678, 11613356, 20323373, 40646746, 81293492

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81293491
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81293492 can be divided by 24 positive divisors. The sum of these divisors (counting 81293492) is 1, the average is 0.041666666666667.

Base conversion 81293492

Base System Value
2 Binary 100110110000111000010110100
3 Ternary 12122222010201002
4 Quaternary 10312013002310
5 Quinary 131302342432
6 Senary 12022222432
8 Octal 466070264
10 Decimal 81293492
12 Duodecimal 23284a18
16 Hexadecimal 4d870b4
20 Vigesimal 1581dec
36 Base36 1ceegk

Cryptographic Hash Functions

md5 08c45a22f3ce534d3852bf546f2b9602
sha1 68b005282b5d76511af7224369b9ebba334980cf
sha256 bd482360e4f7436dd5f066a6efbc18e0f39dc8c2e4be25c1681b3e350fd3a95a
sha512 2ac9766b51edda41fa9742828c83f8b0344533522e7d90b43df6946d7564db04cc7dc1b0f901b52cf34e1e6bddeb9b26ab3568b97c178a489ffac5c736b5dfdc
ripemd-160 b1b2a3753280633e42c2f0ccfefc6726ae920186

81293492 as geometric shapes

Circle

Radius = n
Diameter 162586984
Circumference 510782074.50372
Area 2.0761629243706E+16

Sphere

Radius = n
Volume 2.2503804544402E+24
Surface area 8.3046516974823E+16
Circumference 510782074.50372

Square

Length = n
Perimeter 325173968
Area 6608631841554064
Diagonal 114966358.91907

Cube

Length = n
Surface area 39651791049324384
Volume 5.3723875974232E+23
Space diagonal 140804458.46869

Equilateral Triangle

Length = n
Perimeter 243880476
Area 2.8616215295223E+15
Altitude 70402229.234347

Triangular Pyramid

Length = n
Surface area 2.8616215295223E+15
Volume 6.3314195021674E+22
Height 38322119.63969