81497138 (number)

81497138 is an even 8-digits composite number following 81497137 and preceding 81497139. In scientific notation, it is written as 8.1497138 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 40735780 positive integers (up to 81497138) that are relatively prime to 81497138.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand one hundred thirty-eight

Notation

Scientific notation 8.1497138 × 10^7
Engineering notation 8.1497138 × 10^6

Prime Factorization of 81497138

Prime Factorization 2 × 6011 × 6779

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81497138
Product of the distinct prime numbers

The prime factorization of 81497138 is 2 × 6011 × 6779. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497138)

Multiplication

n×y
n×2 162994276
n×3 244491414
n×4 325988552
n×5 407485690

Division

n÷y
n÷2 40748569
n÷3 27165712.666667
n÷3 20374284.5
n÷5 16299427.6

Exponentiation

ny
n2 6641783502191044
n3 5.4128634664419E+23
n4 4.4113288089977E+31
n5 3.5951067271026E+39

Nth Root

y√n
2√n 9027.5765297227
3√n 433.55824787015
4√n 95.013559715036
5√n 38.214525506825

Divisors of 81497138

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497137
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497138 can be divided by 8 positive divisors. The sum of these divisors (counting 81497138) is 1, the average is 0.125.

Base conversion 81497138

Base System Value
2 Binary 100110110111000110000110010
3 Ternary 12200100111001112
4 Quaternary 10312320300302
5 Quinary 131330402023
6 Senary 12030433322
8 Octal 466706062
10 Decimal 81497138
12 Duodecimal 23362842
16 Hexadecimal 4db8c32
20 Vigesimal 15972gi
36 Base36 1cirle

Cryptographic Hash Functions

md5 44a7f15cf8ba349a138ecf07c734e8b8
sha1 fa9d3b956667460dd32288c6b02af7a0499d3af3
sha256 3bb8d92a86fad45ab5030c14bd316413a408d00d922e5b8cca336fa215e2d7f6
sha512 7d50b756dc142a64112c6404819dea220972a889d0afc4181df5c774e98d687459d9de0678da62033fff5481eae71101763e444a15b3879aab305d543921f176
ripemd-160 8a227b35c8799d8989df1b9641e6277094895f85

81497138 as geometric shapes

Circle

Radius = n
Diameter 162994276
Circumference 512061620.05879
Area 2.0865778257217E+16

Sphere

Radius = n
Volume 2.2673349468078E+24
Surface area 8.3463113028869E+16
Circumference 512061620.05879

Square

Length = n
Perimeter 325988552
Area 6641783502191044
Diagonal 115254357.85419

Cube

Length = n
Surface area 39850701013146264
Volume 5.4128634664419E+23
Space diagonal 141157183.68745

Equilateral Triangle

Length = n
Perimeter 244491414
Area 2.8759766196669E+15
Altitude 70578591.843726

Triangular Pyramid

Length = n
Surface area 2.8759766196669E+15
Volume 6.3791207712633E+22
Height 38418119.284731