81128047 (number)

81128047 is an odd 8-digits composite number following 81128046 and preceding 81128048. In scientific notation, it is written as 8.1128047 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 58353120 positive integers (up to 81128047) that are relatively prime to 81128047.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-eight thousand forty-seven

Notation

Scientific notation 8.1128047 × 10^7
Engineering notation 8.1128047 × 10^6

Prime Factorization of 81128047

Prime Factorization 13 × 77 × 81047

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81128047
Product of the distinct prime numbers

The prime factorization of 81128047 is 13 × 77 × 81047. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 35, 90, 100, 311, 8633, 3529, 57121, 58086, 407662, 235603, 9070365, 9935050, 53138013, 56443226, 474546838, 887023350, 2190686177, 6988919076

Basic calculations (n = 81128047)

Multiplication

n×y
n×2 162256094
n×3 243384141
n×4 324512188
n×5 405640235

Division

n÷y
n÷2 40564023.5
n÷3 27042682.333333
n÷3 20282011.75
n÷5 16225609.4

Exponentiation

ny
n2 6581760010034209
n3 5.3396533543678E+23
n4 4.3319564829686E+31
n5 3.5144316915223E+39

Nth Root

y√n
2√n 9007.1109130509
3√n 432.90274578683
4√n 94.905800207631
5√n 38.179848808394

Divisors of 81128047

1, 13, 77, 1001, 81047, 1053611, 6240619, 81128047

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 -81128046
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 81128047 can be divided by 8 positive divisors. The sum of these divisors (counting 81128047) is 1, the average is 0.125.

Base conversion 81128047

Base System Value
2 Binary 100110101011110101001101111
3 Ternary 12122122201202111
4 Quaternary 10311132221233
5 Quinary 131232044142
6 Senary 12014504451
8 Octal 465365157
10 Decimal 81128047
12 Duodecimal 23205127
16 Hexadecimal 4d5ea6f
20 Vigesimal 1571027
36 Base36 1causv

Cryptographic Hash Functions

md5 e38b773d6d5292bbdea498e66e09afc6
sha1 196f24aba1d2420947e0818c56e0c400584929ce
sha256 90005001cc949166b0e6c46487231587eee70fa0ead95c4d08cb00cd33b46e59
sha512 7ad5618a39e981ecef0d7807c0bc5df23b4fae434da982f556830c9b9666515b61a9cb7f84bb0684250bd4b7c6bfa25f5cba171058a8ce6ce1fc33decdb277d8
ripemd-160 9287a69a7fa562f3b5a5a0ff4690d6912b52ff24

81128047 as geometric shapes

Circle

Radius = n
Diameter 162256094
Circumference 509742552.91057
Area 2.0677208895215E+16

Sphere

Radius = n
Volume 2.236668766773E+24
Surface area 8.2708835580858E+16
Circumference 509742552.91057

Square

Length = n
Perimeter 324512188
Area 6581760010034209
Diagonal 114732384.35624

Cube

Length = n
Surface area 39490560060205254
Volume 5.3396533543678E+23
Space diagonal 140517899.32284

Equilateral Triangle

Length = n
Perimeter 243384141
Area 2.8499856851511E+15
Altitude 70258949.661418

Triangular Pyramid

Length = n
Surface area 2.8499856851511E+15
Volume 6.2928418267649E+22
Height 38244128.118747