81124489 (number)

81124489 is an odd 8-digits composite number following 81124488 and preceding 81124490. In scientific notation, it is written as 8.1124489 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 78375600 positive integers (up to 81124489) that are relatively prime to 81124489.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-four thousand four hundred eighty-nine

Notation

Scientific notation 8.1124489 × 10^7
Engineering notation 8.1124489 × 10^6

Prime Factorization of 81124489

Prime Factorization 31 × 709 × 3691

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81124489
Product of the distinct prime numbers

The prime factorization of 81124489 is 31 × 709 × 3691. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 74, 85, 579, 242, 8574, 5532, 26663, 53747, 317207, 657535, 1405129, 5894886, 26672405, 64504498, 627611149, 645799789, 8297761287, 2409942802

Basic calculations (n = 81124489)

Multiplication

n×y
n×2 162248978
n×3 243373467
n×4 324497956
n×5 405622445

Division

n÷y
n÷2 40562244.5
n÷3 27041496.333333
n÷3 20281122.25
n÷5 16224897.8

Exponentiation

ny
n2 6581182715511121
n3 5.3389508481147E+23
n4 4.3311965934942E+31
n5 3.5136611040576E+39

Nth Root

y√n
2√n 9006.913400272
3√n 432.89641714734
4√n 94.904759629178
5√n 38.179513914877

Divisors of 81124489

1, 31, 709, 3691, 21979, 114421, 2616919, 81124489

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 -81124488
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 81124489 can be divided by 8 positive divisors. The sum of these divisors (counting 81124489) is 1, the average is 0.125.

Base conversion 81124489

Base System Value
2 Binary 100110101011101110010001001
3 Ternary 12122122112212201
4 Quaternary 10311131302021
5 Quinary 131231440424
6 Senary 12014440201
8 Octal 465356211
10 Decimal 81124489
12 Duodecimal 23203061
16 Hexadecimal 4d5dc89
20 Vigesimal 1570b49
36 Base36 1cas21

Cryptographic Hash Functions

md5 c1fdc9239b0d030dee003d8d88013eda
sha1 99245e2f2e6892e6c4df80400549f646440510bf
sha256 4376c3e845e19e7114b1cc91fd77f1e6df12b5f7b8f4810662b30e058143a630
sha512 b843b6156a1112a1713f7a853faa2861abd13824865dd4dcbd9b7aa3a9d7d4dfc7e3c8b1f7a5ec9c8b465edfe8c88a1ba8872a639fca8e91a26631feed42e09d
ripemd-160 991d5f2ab927d66509cf4b26558714be322d1d3b

81124489 as geometric shapes

Circle

Radius = n
Diameter 162248978
Circumference 509720197.33725
Area 2.0675395270982E+16

Sphere

Radius = n
Volume 2.2363745016419E+24
Surface area 8.2701581083927E+16
Circumference 509720197.33725

Square

Length = n
Perimeter 324497956
Area 6581182715511121
Diagonal 114727352.58439

Cube

Length = n
Surface area 39487096293066726
Volume 5.3389508481147E+23
Space diagonal 140511736.68606

Equilateral Triangle

Length = n
Perimeter 243373467
Area 2.8497357092898E+15
Altitude 70255868.343031

Triangular Pyramid

Length = n
Surface area 2.8497357092898E+15
Volume 6.292013915206E+22
Height 38242450.861462