81124788 (number)

81124788 is an even 8-digits composite number following 81124787 and preceding 81124789. In scientific notation, it is written as 8.1124788 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors. There are 27041592 positive integers (up to 81124788) that are relatively prime to 81124788.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1124788 × 10^7
Engineering notation 8.1124788 × 10^6

Prime Factorization of 81124788

Prime Factorization 2 × 2 × 3 × 6760399

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40562394
Product of the distinct prime numbers

The prime factorization of 81124788 is 2 × 2 × 3 × 6760399. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 8, 46, 96, 699, 948, 9259, 9328, 39691, 84292, 955871, 23307, 1964152, 9147753, 28631111, 14232829, 384011787, 942019906, 1413070187, 6292985999

Basic calculations (n = 81124788)

Multiplication

n×y
n×2 162249576
n×3 243374364
n×4 324499152
n×5 405623940

Division

n÷y
n÷2 40562394
n÷3 27041596
n÷3 20281197
n÷5 16224957.6

Exponentiation

ny
n2 6581231228044944
n3 5.3390098815413E+23
n4 4.3312604476994E+31
n5 3.513725855924E+39

Nth Root

y√n
2√n 9006.9299986177
3√n 432.89694898785
4√n 94.90484707652
5√n 38.179542058432

Divisors of 81124788

1, 2, 3, 4, 6, 12, 6760399, 13520798, 20281197, 27041596, 40562394, 81124788

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 -81124787
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 81124788 can be divided by 12 positive divisors. The sum of these divisors (counting 81124788) is 1, the average is 0.083333333333333.

Base conversion 81124788

Base System Value
2 Binary 100110101011101110110110100
3 Ternary 12122122120021210
4 Quaternary 10311131312310
5 Quinary 131231443123
6 Senary 12014441420
8 Octal 465356664
10 Decimal 81124788
12 Duodecimal 23203270
16 Hexadecimal 4d5ddb4
20 Vigesimal 1570bj8
36 Base36 1casac

Cryptographic Hash Functions

md5 58a88f46bf5611d03a5c63e5d3340dbf
sha1 1490d953319d675ef500e400cfd99d0a8e7dc42e
sha256 11e977f0763aaf304dac551a24b63cfe1e0d24b6b9b675298bb93a4d00b4db7d
sha512 f7ec087b57489f26eaeed066af434a241d3f75f9e8ec6341c5ebd1772dcab441feed127a84ebbb7415cbe2c959a195ff4b5a89b2fbb618fa5d55779328c75e4a
ripemd-160 4ae61cc42a2343c20eaca13f0fb9de5190e6de02

81124788 as geometric shapes

Circle

Radius = n
Diameter 162249576
Circumference 509722076.00966
Area 2.0675547677602E+16

Sphere

Radius = n
Volume 2.2363992295058E+24
Surface area 8.2702190710407E+16
Circumference 509722076.00966

Square

Length = n
Perimeter 324499152
Area 6581231228044944
Diagonal 114727775.43424

Cube

Length = n
Surface area 39487387368269664
Volume 5.3390098815413E+23
Space diagonal 140512254.56925

Equilateral Triangle

Length = n
Perimeter 243374364
Area 2.8497567158332E+15
Altitude 70256127.284627

Triangular Pyramid

Length = n
Surface area 2.8497567158332E+15
Volume 6.2920834867663E+22
Height 38242591.811414