81493090 (number)

81493090 is an even 8-digits composite number following 81493089 and preceding 81493091. In scientific notation, it is written as 8.1493090 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 26066880 positive integers (up to 81493090) that are relatively prime to 81493090.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1493090 × 10^7
Engineering notation 8.1493090 × 10^6

Prime Factorization of 81493090

Prime Factorization 2 × 665 × 71 × 863

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81493090
Product of the distinct prime numbers

The prime factorization of 81493090 is 2 × 665 × 71 × 863. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 80, 41, 230, 754, 6691, 9094, 5146, 39601, 95640, 23445, 2506373, 8586464, 33320643, 6487183, 229841345, 272459693, 9756910957, 6953142699

Basic calculations (n = 81493090)

Multiplication

n×y
n×2 162986180
n×3 244479270
n×4 325972360
n×5 407465450

Division

n÷y
n÷2 40746545
n÷3 27164363.333333
n÷3 20373272.5
n÷5 16298618

Exponentiation

ny
n2 6641123717748100
n3 5.4120569283158E+23
n4 4.4104524234436E+31
n5 3.5942139628441E+39

Nth Root

y√n
2√n 9027.3523250176
3√n 433.55106940601
4√n 95.012379851352
5√n 38.214145872701

Divisors of 81493090

1, 2, 71, 142, 665, 863, 1330, 1726, 47215, 61273, 94430, 122546, 573895, 1147790, 40746545, 81493090

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 -81493089
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 81493090 can be divided by 16 positive divisors. The sum of these divisors (counting 81493090) is 1, the average is 0.0625.

Base conversion 81493090

Base System Value
2 Binary 100110110110111110001100010
3 Ternary 12200100021111121
4 Quaternary 10312313301202
5 Quinary 131330234330
6 Senary 12030402454
8 Octal 466676142
10 Decimal 81493090
12 Duodecimal 2336042a
16 Hexadecimal 4db7c62
20 Vigesimal 1596cea
36 Base36 1ciogy

Cryptographic Hash Functions

md5 ce54567e53d855a42e8d227bfb99bf0d
sha1 604b1a6724a9cdf1707f6adc14bb4eae06d7f30c
sha256 6a3236779a5c6221a111b175e4483578edf110fe120ff83d260cb70ffadb2d76
sha512 6d1633f829b59ffdfbb273617e9b116b85a3fc7025250f512e79a58e0fd9ad41c2b80eb05d7d1f8b5d11f67d3d8e23f5fa4fdf461f6b1ba5690de614fc45df79
ripemd-160 a5b85de7eeae4769ff7df9eaba034c9883750ea9

81493090 as geometric shapes

Circle

Radius = n
Diameter 162986180
Circumference 512036185.72466
Area 2.0863705483258E+16

Sphere

Radius = n
Volume 2.2669971049076E+24
Surface area 8.3454821933033E+16
Circumference 512036185.72466

Square

Length = n
Perimeter 325972360
Area 6641123717748100
Diagonal 115248633.11769

Cube

Length = n
Surface area 39846742306488600
Volume 5.4120569283158E+23
Space diagonal 141150172.34578

Equilateral Triangle

Length = n
Perimeter 244479270
Area 2.8756909246226E+15
Altitude 70575086.172892

Triangular Pyramid

Length = n
Surface area 2.8756909246226E+15
Volume 6.3781702569662E+22
Height 38416211.03923