81497188 (number)

81497188 is an even 8-digits composite number following 81497187 and preceding 81497189. In scientific notation, it is written as 8.1497188 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 12 positive divisors. There are 38976872 positive integers (up to 81497188) that are relatively prime to 81497188.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1497188 × 10^7
Engineering notation 8.1497188 × 10^6

Prime Factorization of 81497188

Prime Factorization 2 × 2 × 23 × 885839

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40748594
Product of the distinct prime numbers

The prime factorization of 81497188 is 2 × 2 × 23 × 885839. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497188)

Multiplication

n×y
n×2 162994376
n×3 244491564
n×4 325988752
n×5 407485940

Division

n÷y
n÷2 40748594
n÷3 27165729.333333
n÷3 20374297
n÷5 16299437.6

Exponentiation

ny
n2 6641791651907344
n3 5.4128734291232E+23
n4 4.4113396347346E+31
n5 3.5951177554382E+39

Nth Root

y√n
2√n 9027.5792990148
3√n 433.55833653546
4√n 95.013574288176
5√n 38.214530195887

Divisors of 81497188

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497187
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497188 can be divided by 12 positive divisors. The sum of these divisors (counting 81497188) is 1, the average is 0.083333333333333.

Base conversion 81497188

Base System Value
2 Binary 100110110111000110001100100
3 Ternary 12200100111010101
4 Quaternary 10312320301210
5 Quinary 131330402223
6 Senary 12030433444
8 Octal 466706144
10 Decimal 81497188
12 Duodecimal 23362884
16 Hexadecimal 4db8c64
20 Vigesimal 15972j8
36 Base36 1cirms

Cryptographic Hash Functions

md5 2c77831d20183f7660b9b164fc0d2b94
sha1 1da848da4cd69959989df34b5f3806d7d29ddc74
sha256 e2a239ce57abf42a856fae0f4ee898a52006cfcac3c0da42a98d6c357420fc1c
sha512 4f64fca81c10f7770d43dcb131e5e0d27e9bc8398373a5bc24654ce0a32f8877122473375454e96666a116dc6dc436d0126a0daac910ffc3327ae889bb7ce5e1
ripemd-160 cf2b19097a70b633cb2b4ba79fa39b069a7455b6

81497188 as geometric shapes

Circle

Radius = n
Diameter 162994376
Circumference 512061934.21805
Area 2.0865803860306E+16

Sphere

Radius = n
Volume 2.267339119966E+24
Surface area 8.3463215441225E+16
Circumference 512061934.21805

Square

Length = n
Perimeter 325988752
Area 6641791651907344
Diagonal 115254428.56487

Cube

Length = n
Surface area 39850749911444064
Volume 5.4128734291232E+23
Space diagonal 141157270.28999

Equilateral Triangle

Length = n
Perimeter 244491564
Area 2.8759801485976E+15
Altitude 70578635.144996

Triangular Pyramid

Length = n
Surface area 2.8759801485976E+15
Volume 6.3791325123959E+22
Height 38418142.854957