81497725 (number)

81497725 is an odd 8-digits composite number following 81497724 and preceding 81497726. In scientific notation, it is written as 8.1497725 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 6 positive divisors. There are 65198160 positive integers (up to 81497725) that are relatively prime to 81497725.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand seven hundred twenty-five

Notation

Scientific notation 8.1497725 × 10^7
Engineering notation 8.1497725 × 10^6

Prime Factorization of 81497725

Prime Factorization 5 × 5 × 3259909

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 16299545
Product of the distinct prime numbers

The prime factorization of 81497725 is 5 × 5 × 3259909. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497725)

Multiplication

n×y
n×2 162995450
n×3 244493175
n×4 325990900
n×5 407488625

Division

n÷y
n÷2 40748862.5
n÷3 27165908.333333
n÷3 20374431.25
n÷5 16299545

Exponentiation

ny
n2 6641879180175625
n3 5.4129804290918E+23
n4 4.411455904405E+31
n5 3.5952362014683E+39

Nth Root

y√n
2√n 9027.6090411581
3√n 433.55928879865
4√n 95.01373080328
5√n 38.214580556272

Divisors of 81497725

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497724
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497725 can be divided by 6 positive divisors. The sum of these divisors (counting 81497725) is 1, the average is 0.16666666666667.

Base conversion 81497725

Base System Value
2 Binary 100110110111000111001111101
3 Ternary 12200100111212021
4 Quaternary 10312320321331
5 Quinary 131330411400
6 Senary 12030440141
8 Octal 466707175
10 Decimal 81497725
12 Duodecimal 23363051
16 Hexadecimal 4db8e7d
20 Vigesimal 1597465
36 Base36 1cis1p

Cryptographic Hash Functions

md5 ba736b5174bfd1f7684c499c4d04e49e
sha1 cb447bf9505da389b3dbdcb8f2e46acfc03f44bb
sha256 3e8298758f1e9eb3445f860772be8a805428b941a4622afed70870d0d1394523
sha512 4524871ee29547e7de8cd5d9b98b6ca5565bbc2a8bb18f7c399740603b85e7ce9cdb3bb05ab77db1d239fc53a90f5cf4af12753a58e74ba436428eb34e55b288
ripemd-160 c178b68e77febe781dda640efad94178090162f2

81497725 as geometric shapes

Circle

Radius = n
Diameter 162995450
Circumference 512065308.28856
Area 2.0866078838471E+16

Sphere

Radius = n
Volume 2.267383940008E+24
Surface area 8.3464315353883E+16
Circumference 512065308.28856

Square

Length = n
Perimeter 325990900
Area 6641879180175625
Diagonal 115255187.99755

Cube

Length = n
Surface area 39851275081053750
Volume 5.4129804290918E+23
Space diagonal 141158200.40128

Equilateral Triangle

Length = n
Perimeter 244493175
Area 2.8760180494495E+15
Altitude 70579100.200638

Triangular Pyramid

Length = n
Surface area 2.8760180494495E+15
Volume 6.3792586130681E+22
Height 38418395.999184