81998548 (number)

81998548 is an even 8-digits composite number following 81998547 and preceding 81998549. In scientific notation, it is written as 8.1998548 × 10^7. The sum of its digits is 52. It has a total of 6 prime factors and 36 positive divisors. There are 38106112 positive integers (up to 81998548) that are relatively prime to 81998548.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred ninety-eight thousand five hundred forty-eight

Notation

Scientific notation 8.1998548 × 10^7
Engineering notation 8.1998548 × 10^6

Prime Factorization of 81998548

Prime Factorization 2 × 2 × 17 × 17 × 89 × 797

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2411722
Product of the distinct prime numbers

The prime factorization of 81998548 is 2 × 2 × 17 × 17 × 89 × 797. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81998548)

Multiplication

n×y
n×2 163997096
n×3 245995644
n×4 327994192
n×5 409992740

Division

n÷y
n÷2 40999274
n÷3 27332849.333333
n÷3 20499637
n÷5 16399709.6

Exponentiation

ny
n2 6723761874108304
n3 5.5133871077464E+23
n4 4.5208973739712E+31
n5 3.7070702032265E+39

Nth Root

y√n
2√n 9055.3049644946
3√n 434.44558425802
4√n 95.159366141723
5√n 38.261433075754

Divisors of 81998548

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81998547
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81998548 can be divided by 36 positive divisors. The sum of these divisors (counting 81998548) is 1, the average is 0.027777777777778.

Base conversion 81998548

Base System Value
2 Binary 100111000110011001011010100
3 Ternary 12201021221212021
4 Quaternary 10320303023110
5 Quinary 131442423143
6 Senary 12045302524
8 Octal 470631324
10 Decimal 81998548
12 Duodecimal 23564a44
16 Hexadecimal 4e332d4
20 Vigesimal 15c9g78
36 Base36 1ctihg

Cryptographic Hash Functions

md5 e312761601d3c823eca17e23fd1b4aea
sha1 dccc613549e8a91c2558549b6de0600c241f6693
sha256 a4142d774821f1006323cacc7f7c4be5f086db7c1038988405813a9e892fa2e3
sha512 b182f38981b9e2d4d535bfbc227608d6569a704b7cafb9febf342c31bb479c07910d38f1fc18c09d59c8d428f3b16a241562f374919822db1bf7723214d7c819
ripemd-160 8d9a01d3d758abaef6bde6ba89a6363e5327e416

81998548 as geometric shapes

Circle

Radius = n
Diameter 163997096
Circumference 515212072.00366
Area 2.1123320908186E+16

Sphere

Radius = n
Volume 2.3094421912124E+24
Surface area 8.4493283632743E+16
Circumference 515212072.00366

Square

Length = n
Perimeter 327994192
Area 6723761874108304
Diagonal 115963458.6765

Cube

Length = n
Surface area 40342571244649824
Volume 5.5133871077464E+23
Space diagonal 142025651.28288

Equilateral Triangle

Length = n
Perimeter 245995644
Area 2.9114742959875E+15
Altitude 71012825.641438

Triangular Pyramid

Length = n
Surface area 2.9114742959875E+15
Volume 6.4975890186566E+22
Height 38654486.2255