81497845 (number)

81497845 is an odd 8-digits composite number following 81497844 and preceding 81497846. In scientific notation, it is written as 8.1497845 × 10^7. The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors. There are 54711360 positive integers (up to 81497845) that are relatively prime to 81497845.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand eight hundred forty-five

Notation

Scientific notation 8.1497845 × 10^7
Engineering notation 8.1497845 × 10^6

Prime Factorization of 81497845

Prime Factorization 55 × 13 × 113983

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81497845
Product of the distinct prime numbers

The prime factorization of 81497845 is 55 × 13 × 113983. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 8, 21, 590, 702, 1386, 2297, 21499, 93558, 792369, 745688, 2325741, 964155, 85206865, 64892686, 100831753, 633593, 2713951577, 7323514898

Basic calculations (n = 81497845)

Multiplication

n×y
n×2 162995690
n×3 244493535
n×4 325991380
n×5 407489225

Division

n÷y
n÷2 40748922.5
n÷3 27165948.333333
n÷3 20374461.25
n÷5 16299569

Exponentiation

ny
n2 6641898739644025
n3 5.413004339892E+23
n4 4.4114818867685E+31
n5 3.5952626702817E+39

Nth Root

y√n
2√n 9027.6156874338
3√n 433.55950159432
4√n 95.013765778616
5√n 38.214591809953

Divisors of 81497845

1, 13, 55, 715, 113983, 1481779, 6269065, 81497845

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 -81497844
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 81497845 can be divided by 8 positive divisors. The sum of these divisors (counting 81497845) is 1, the average is 0.125.

Base conversion 81497845

Base System Value
2 Binary 100110110111000111011110101
3 Ternary 12200100112000201
4 Quaternary 10312320323311
5 Quinary 131330412340
6 Senary 12030440501
8 Octal 466707365
10 Decimal 81497845
12 Duodecimal 23363131
16 Hexadecimal 4db8ef5
20 Vigesimal 15974c5
36 Base36 1cis51

Cryptographic Hash Functions

md5 749bae854de0937a424b7f22d814b15d
sha1 377792ef6a49c1a7eb6721eaf9f2a227268fdece
sha256 eaf150beaa96745cfaea3590166c85e260a7a745909a33168c30a410864e2696
sha512 70e72c3bfc95abb01a55ae9b89f9fa70c4fd889af9be371c6bc52383cfc110b13d16edc68fa967806c749c23950be90b4ef1842cf37d917cb4609b1c055010b3
ripemd-160 b193b4e8e6873f12b04bb633cbb33e8c96d520f6

81497845 as geometric shapes

Circle

Radius = n
Diameter 162995690
Circumference 512066062.2708
Area 2.0866140286353E+16

Sphere

Radius = n
Volume 2.2673939557406E+24
Surface area 8.3464561145412E+16
Circumference 512066062.2708

Square

Length = n
Perimeter 325991380
Area 6641898739644025
Diagonal 115255357.70318

Cube

Length = n
Surface area 39851392437864150
Volume 5.413004339892E+23
Space diagonal 141158408.24737

Equilateral Triangle

Length = n
Perimeter 244493535
Area 2.8760265189478E+15
Altitude 70579204.123687

Triangular Pyramid

Length = n
Surface area 2.8760265189478E+15
Volume 6.3792867922165E+22
Height 38418452.567727