81977584 (number)

81977584 is an even 8-digits composite number following 81977583 and preceding 81977585. In scientific notation, it is written as 8.1977584 × 10^7. The sum of its digits is 49. It has a total of 6 prime factors and 20 positive divisors. There are 37835712 positive integers (up to 81977584) that are relatively prime to 81977584.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred seventy-seven thousand five hundred eighty-four

Notation

Scientific notation 8.1977584 × 10^7
Engineering notation 8.1977584 × 10^6

Prime Factorization of 81977584

Prime Factorization 2 × 2 × 2 × 2 × 13 × 394123

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10247198
Product of the distinct prime numbers

The prime factorization of 81977584 is 2 × 2 × 2 × 2 × 13 × 394123. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 6, 28, 26, 629, 166, 2589, 4511, 31751, 16092, 909418, 644817, 1725115, 7239138, 66343600, 78485632, 38514426, 897978587, 8449869070, 4632886104

Basic calculations (n = 81977584)

Multiplication

n×y
n×2 163955168
n×3 245932752
n×4 327910336
n×5 409887920

Division

n÷y
n÷2 40988792
n÷3 27325861.333333
n÷3 20494396
n÷5 16395516.8

Exponentiation

ny
n2 6720324278477056
n3 5.5091594804609E+23
n4 4.5162758407888E+31
n5 3.7023338210544E+39

Nth Root

y√n
2√n 9054.1473369942
3√n 434.408557206
4√n 95.153283374744
5√n 38.25947646861

Divisors of 81977584

1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 394123, 788246, 1576492, 3152984, 5123599, 6305968, 10247198, 20494396, 40988792, 81977584

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81977583
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81977584 can be divided by 20 positive divisors. The sum of these divisors (counting 81977584) is 1, the average is 0.05.

Base conversion 81977584

Base System Value
2 Binary 100111000101110000011110000
3 Ternary 12201020220002211
4 Quaternary 10320232003300
5 Quinary 131441240314
6 Senary 12045021504
8 Octal 470560360
10 Decimal 81977584
12 Duodecimal 23554894
16 Hexadecimal 4e2e0f0
20 Vigesimal 15c73j4
36 Base36 1ct2b4

Cryptographic Hash Functions

md5 882715bb9a4f532e984db686f790c54f
sha1 946b2f5220320fe85c4796ec0c1c678c67df84ee
sha256 2acedaab45b0bf6d6409de0be1b6d9ca28c6a8309da4b660f79d8d57685f54b6
sha512 46071d152be7c94dbe3d1bb01ece2bbfcb70dcdb234220e8b757f9d8d84831317036819b5e26168711780992810acbd321aad57fb996081f75b03183bff226f1
ripemd-160 b068cb4e2ade1f6b9fed6e76ec28442fabdb94f0

81977584 as geometric shapes

Circle

Radius = n
Diameter 163955168
Circumference 515080351.30688
Area 2.1112521383005E+16

Sphere

Radius = n
Volume 2.3076713268361E+24
Surface area 8.4450085532019E+16
Circumference 515080351.30688

Square

Length = n
Perimeter 327910336
Area 6720324278477056
Diagonal 115933811.10338

Cube

Length = n
Surface area 40321945670862336
Volume 5.5091594804609E+23
Space diagonal 141989340.56975

Equilateral Triangle

Length = n
Perimeter 245932752
Area 2.9099857734152E+15
Altitude 70994670.284873

Triangular Pyramid

Length = n
Surface area 2.9099857734152E+15
Volume 6.4926067121201E+22
Height 38644603.701127