81497838 (number)

81497838 is an even 8-digits composite number following 81497837 and preceding 81497839. In scientific notation, it is written as 8.1497838 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 27165944 positive integers (up to 81497838) that are relatively prime to 81497838.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1497838 × 10^7
Engineering notation 8.1497838 × 10^6

Prime Factorization of 81497838

Prime Factorization 2 × 3 × 13582973

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81497838
Product of the distinct prime numbers

The prime factorization of 81497838 is 2 × 3 × 13582973. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497838)

Multiplication

n×y
n×2 162995676
n×3 244493514
n×4 325991352
n×5 407489190

Division

n÷y
n÷2 40748919
n÷3 27165946
n÷3 20374459.5
n÷5 16299567.6

Exponentiation

ny
n2 6641897598674244
n3 5.4130029450934E+23
n4 4.4114803711275E+31
n5 3.5952611262633E+39

Nth Root

y√n
2√n 9027.6152997345
3√n 433.55948918124
4√n 95.013763738389
5√n 38.214591153488

Divisors of 81497838

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 -81497837
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 81497838 can be divided by 8 positive divisors. The sum of these divisors (counting 81497838) is 1, the average is 0.125.

Base conversion 81497838

Base System Value
2 Binary 100110110111000111011101110
3 Ternary 12200100112000110
4 Quaternary 10312320323232
5 Quinary 131330412323
6 Senary 12030440450
8 Octal 466707356
10 Decimal 81497838
12 Duodecimal 23363126
16 Hexadecimal 4db8eee
20 Vigesimal 15974bi
36 Base36 1cis4u

Cryptographic Hash Functions

md5 a5c7dfa14fde0b9cbe31501721f52b19
sha1 7baca43cee5e912d9b3dae325ad7199b6635160a
sha256 8c44d15b4454d7c6c0da755c3eff6bce9a7c870849898c56b38b0ebd1f9b8a5d
sha512 b4f8568d801df61cba61f9e3875e8cde4e8fb0aec92232557419c6a842cd0ff37a255bc521008fd412992aff3c137e8c425fe4666c1052d0bde17075f026b21d
ripemd-160 012bf263fde7b29f9bdbfb2b5e32f6b8e5dbba54

81497838 as geometric shapes

Circle

Radius = n
Diameter 162995676
Circumference 512066018.2885
Area 2.0866136701891E+16

Sphere

Radius = n
Volume 2.2673933714887E+24
Surface area 8.3464546807563E+16
Circumference 512066018.2885

Square

Length = n
Perimeter 325991352
Area 6641897598674244
Diagonal 115255347.80369

Cube

Length = n
Surface area 39851385592045464
Volume 5.4130029450934E+23
Space diagonal 141158396.12302

Equilateral Triangle

Length = n
Perimeter 244493514
Area 2.8760260248934E+15
Altitude 70579198.061509

Triangular Pyramid

Length = n
Surface area 2.8760260248934E+15
Volume 6.3792851484305E+22
Height 38418449.267895