81497761 (number)

81497761 is an odd 8-digits prime number following 81497760 and preceding 81497762. In scientific notation, it is written as 8.1497761 × 10^7. The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors. There are 81497760 positive integers (up to 81497761) that are relatively prime to 81497761.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand seven hundred sixty-one

Notation

Scientific notation 8.1497761 × 10^7
Engineering notation 8.1497761 × 10^6

Prime Factorization of 81497761

Prime Factorization 81497761

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81497761
Product of the distinct prime numbers

The prime factorization of 81497761 is 81497761. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497761)

Multiplication

n×y
n×2 162995522
n×3 244493283
n×4 325991044
n×5 407488805

Division

n÷y
n÷2 40748880.5
n÷3 27165920.333333
n÷3 20374440.25
n÷5 16299552.2

Exponentiation

ny
n2 6641885048013121
n3 5.4129876023245E+23
n4 4.411463699102E+31
n5 3.5952441420959E+39

Nth Root

y√n
2√n 9027.6110350413
3√n 433.55935263737
4√n 95.013741295885
5√n 38.214583932378

Divisors of 81497761

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81497762
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40748881
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9027.611090427
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999754594
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497761 can be divided by 2 positive divisors. The sum of these divisors (counting 81497761) is 81497762, the average is 40748881.

Base conversion 81497761

Base System Value
2 Binary 100110110111000111010100001
3 Ternary 12200100111220121
4 Quaternary 10312320322201
5 Quinary 131330412021
6 Senary 12030440241
8 Octal 466707241
10 Decimal 81497761
12 Duodecimal 23363081
16 Hexadecimal 4db8ea1
20 Vigesimal 1597481
36 Base36 1cis2p

Cryptographic Hash Functions

md5 39d3ddb523e96faa0d6a5c2ee527277f
sha1 2fe72fa8d97698afb835e33924e61e347efefe8c
sha256 825d5c341d39fb02a8ee97ec2fed0f75048405428d749ade9ca107b5a27fda98
sha512 68df8e61c2092f0140104cd24bebe79b8641e34dd970baf3ad6fa15198946cdbc8a1b447a73a25167e862e0449d079b08223dda9d23676ee7df2bacfb36e619f
ripemd-160 df014faba114f549775802219fcb2af7c72d81c9

81497761 as geometric shapes

Circle

Radius = n
Diameter 162995522
Circumference 512065534.48323
Area 2.0866097272826E+16

Sphere

Radius = n
Volume 2.2673869447247E+24
Surface area 8.3464389091304E+16
Circumference 512065534.48323

Square

Length = n
Perimeter 325991044
Area 6641885048013121
Diagonal 115255238.90924

Cube

Length = n
Surface area 39851310288078726
Volume 5.4129876023245E+23
Space diagonal 141158262.75511

Equilateral Triangle

Length = n
Perimeter 244493283
Area 2.8760205902977E+15
Altitude 70579131.377553

Triangular Pyramid

Length = n
Surface area 2.8760205902977E+15
Volume 6.3792670668039E+22
Height 38418412.969747